7b-(-9)=86

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Solution for 7b-(-9)=86 equation: 


Simplifying
7b + -1(-9) = 86

Multiply -1 * -9
7b + 9 = 86

Reorder the terms:
9 + 7b = 86

Solving
9 + 7b = 86

Solving for variable 'b'.

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

Add '-9' to each side of the equation.
9 + -9 + 7b = 86 + -9

Combine like terms: 9 + -9 = 0
0 + 7b = 86 + -9
7b = 86 + -9

Combine like terms: 86 + -9 = 77
7b = 77

Divide each side by '7'.
b = 11

Simplifying
b = 11

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