-7b+4=81

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Solution for -7b+4=81 equation: 


Simplifying
-7b + 4 = 81

Reorder the terms:
4 + -7b = 81

Solving
4 + -7b = 81

Solving for variable 'b'.

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

Add '-4' to each side of the equation.
4 + -4 + -7b = 81 + -4

Combine like terms: 4 + -4 = 0
0 + -7b = 81 + -4
-7b = 81 + -4

Combine like terms: 81 + -4 = 77
-7b = 77

Divide each side by '-7'.
b = -11

Simplifying
b = -11

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