-31=8-6b-7b

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Solution for -31=8-6b-7b equation:


Simplifying
-31 = 8 + -6b + -7b

Combine like terms: -6b + -7b = -13b
-31 = 8 + -13b

Solving
-31 = 8 + -13b

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '13b' to each side of the equation.
-31 + 13b = 8 + -13b + 13b

Combine like terms: -13b + 13b = 0
-31 + 13b = 8 + 0
-31 + 13b = 8

Add '31' to each side of the equation.
-31 + 31 + 13b = 8 + 31

Combine like terms: -31 + 31 = 0
0 + 13b = 8 + 31
13b = 8 + 31

Combine like terms: 8 + 31 = 39
13b = 39

Divide each side by '13'.
b = 3

Simplifying
b = 3

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