7b-7-8b=-15

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Solution for 7b-7-8b=-15 equation:


Simplifying
7b + -7 + -8b = -15

Reorder the terms:
-7 + 7b + -8b = -15

Combine like terms: 7b + -8b = -1b
-7 + -1b = -15

Solving
-7 + -1b = -15

Solving for variable 'b'.

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

Add '7' to each side of the equation.
-7 + 7 + -1b = -15 + 7

Combine like terms: -7 + 7 = 0
0 + -1b = -15 + 7
-1b = -15 + 7

Combine like terms: -15 + 7 = -8
-1b = -8

Divide each side by '-1'.
b = 8

Simplifying
b = 8

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