b-90=-b-4

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Solution for b-90=-b-4 equation:


Simplifying
b + -90 = -1b + -4

Reorder the terms:
-90 + b = -1b + -4

Reorder the terms:
-90 + b = -4 + -1b

Solving
-90 + b = -4 + -1b

Solving for variable 'b'.

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

Add 'b' to each side of the equation.
-90 + b + b = -4 + -1b + b

Combine like terms: b + b = 2b
-90 + 2b = -4 + -1b + b

Combine like terms: -1b + b = 0
-90 + 2b = -4 + 0
-90 + 2b = -4

Add '90' to each side of the equation.
-90 + 90 + 2b = -4 + 90

Combine like terms: -90 + 90 = 0
0 + 2b = -4 + 90
2b = -4 + 90

Combine like terms: -4 + 90 = 86
2b = 86

Divide each side by '2'.
b = 43

Simplifying
b = 43

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