# What is 12b minus 9 plus 2b minus b equal negative 87?

# 2 minus negative 9 equals?

2 - -9 = 2 + 9 = 11

# Why does minus of minus equals plus?

The negative of a negative number is a positive number. The reason for this is that the first negative is a place holder for -1. When you have - - 4, that translates into -1 …x -4. When you multiply two negative numbers, you get a positive. For example: - - 7 = -1 x -7 = 7 - - r = -1 x -r = r

# A plus b equals 8 and a minus b equals 9?

Solve one of the formulas for A, then substitute that into the other formula to solve for B, then substitute the solution for B into one of the formulas to solve for A. Her…e is how: Givens: A+B=8 A-B=9 So: If A+B=8 then A=8-B Next, substitute this into the other formula... A-B=9 (8-B)-B=9 (-B) - B = 1 (-2B) = 1 B= (- 1/2) Next, substitute the solution for B into one of the formulas to solve for A.... A+B=8 A+ (-1/2) = 8 A = 8 and 1/2 So... B= (- 1/2) A = 8 and 1/2

# What does 9 minus negative 3 minus 8 equals?

9 - -3 = 9 + 3 = 12 12 - 8 = 4 9 - -3 - 8 = 4

# Does a minus and a minus equal a plus?

Depends what you mean by " and ". If they're added : never If they're subtracted : sometimes If they're multiplied or divided : always

# Why minus minus equals plus?

You are taking something away a negative amount of times. Which means you are actually giving.

# What is the answer of 4 divided by 9 plus 87 minus 44?

Answer is 43.4444

# What does negative 5 minus 9 equals?

Negative 14

# What is 9 minus negative 6 plus 20 equals?

9 - - 6 + 20 = 35

Answered

# How does minus minus equal plus?

When you are doing maths, you must see the equations as numbers. So 5-1 consists from the numbers +5 and -1. So 5-1=-1+5 however if you substract with a negative number you a…ctually substract With -1 So 5--1, becomes 5+1. See it as I have a bucket of -ses and +ses. When I remove one - the sum of +ses is greater than the sum of the -ses

Answered

# How minus into minus is equal to plus?

yes its true because of multiplication property, for eg: (-2)(-3)=6. here -x-=+. likewise +x- or -x+ =(-). and if take another eg like (-1)^2(-1 ka whole square )= +1.

Answered

# Why does minus and minus equal plus?

Because a minus changes the sign. If you take a plus and change it to a minus, you get a minus. If you take a minus and change it to a minus, it changes back into a plus. …Because you have only two options, minus and plus, here are all the options: .
+ & - = - .
+ & + = + .
- & + = - .
- & - = + ===== Everything above the double line is a misleading, even dangerous discussion. When it's all over, both the questioner and the responder think they have it all worked out, where in reality, it's all meaningless. The main problem is: Neither of them ever explains what ' and ' means in the question, or what ' & ' means in the answer. Neither of those is a mathematical operation. The statement in the question, and the list of 4 'rules' in the answer, are correct for some mathematical operations and either indeterminate or dead wrong for others. The question says: " ... minus and minus equal plus. " -- If ' and ' means multiplication or division, then it's a true statement. -- If ' and ' means subtraction, then it may or may not be true, depending on the size of the two numbers. -- If ' and ' means addition, then it's always false. In the list of 4 items in the answer: -- If ' & ' means multiplication or division, then all 4 items are correct (but almost impossible to remember in this form). -- If ' & ' means addition, then items #1 and #3 are sometimes true and sometimes false, item #2 is always true, and item #4 is always false. -- If ' & ' means subtraction, then item #1 is always false, items #2 and #4 are sometimes true and sometimes false, and item #3 is always true.

Answered

# What is 2b minus 4 equals 4 2b plus 1?

Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Pleas…e resubmit your question spelling out the symbols as "plus", "minus", "equals". There is no visible symbol between " ... equals 4" and "2b plus 1".

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# What does b equal in 2b minus b minus 10 equals negative 13?

Taking it step by step: 2b - b - 10 = -13 b - 10 = -13 b = -13 + 10 b = - 3