-20=8+7b

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Solution for -20=8+7b equation:


Simplifying
-20 = 8 + 7b

Solving
-20 = 8 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
-20 + -7b = 8 + 7b + -7b

Combine like terms: 7b + -7b = 0
-20 + -7b = 8 + 0
-20 + -7b = 8

Add '20' to each side of the equation.
-20 + 20 + -7b = 8 + 20

Combine like terms: -20 + 20 = 0
0 + -7b = 8 + 20
-7b = 8 + 20

Combine like terms: 8 + 20 = 28
-7b = 28

Divide each side by '-7'.
b = -4

Simplifying
b = -4

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