89=5b-7(1-b)

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Solution for 89=5b-7(1-b) equation:


Simplifying
89 = 5b + -7(1 + -1b)
89 = 5b + (1 * -7 + -1b * -7)
89 = 5b + (-7 + 7b)

Reorder the terms:
89 = -7 + 5b + 7b

Combine like terms: 5b + 7b = 12b
89 = -7 + 12b

Solving
89 = -7 + 12b

Solving for variable 'b'.

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

Add '-12b' to each side of the equation.
89 + -12b = -7 + 12b + -12b

Combine like terms: 12b + -12b = 0
89 + -12b = -7 + 0
89 + -12b = -7

Add '-89' to each side of the equation.
89 + -89 + -12b = -7 + -89

Combine like terms: 89 + -89 = 0
0 + -12b = -7 + -89
-12b = -7 + -89

Combine like terms: -7 + -89 = -96
-12b = -96

Divide each side by '-12'.
b = 8

Simplifying
b = 8

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