7(b+5)=8(b-7)

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Solution for 7(b+5)=8(b-7) equation:


Simplifying
7(b + 5) = 8(b + -7)

Reorder the terms:
7(5 + b) = 8(b + -7)
(5 * 7 + b * 7) = 8(b + -7)
(35 + 7b) = 8(b + -7)

Reorder the terms:
35 + 7b = 8(-7 + b)
35 + 7b = (-7 * 8 + b * 8)
35 + 7b = (-56 + 8b)

Solving
35 + 7b = -56 + 8b

Solving for variable 'b'.

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

Add '-8b' to each side of the equation.
35 + 7b + -8b = -56 + 8b + -8b

Combine like terms: 7b + -8b = -1b
35 + -1b = -56 + 8b + -8b

Combine like terms: 8b + -8b = 0
35 + -1b = -56 + 0
35 + -1b = -56

Add '-35' to each side of the equation.
35 + -35 + -1b = -56 + -35

Combine like terms: 35 + -35 = 0
0 + -1b = -56 + -35
-1b = -56 + -35

Combine like terms: -56 + -35 = -91
-1b = -91

Divide each side by '-1'.
b = 91

Simplifying
b = 91

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