9b-2(b-4)=10b-7(5b+8)

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Solution for 9b-2(b-4)=10b-7(5b+8) equation:


Simplifying
9b + -2(b + -4) = 10b + -7(5b + 8)

Reorder the terms:
9b + -2(-4 + b) = 10b + -7(5b + 8)
9b + (-4 * -2 + b * -2) = 10b + -7(5b + 8)
9b + (8 + -2b) = 10b + -7(5b + 8)

Reorder the terms:
8 + 9b + -2b = 10b + -7(5b + 8)

Combine like terms: 9b + -2b = 7b
8 + 7b = 10b + -7(5b + 8)

Reorder the terms:
8 + 7b = 10b + -7(8 + 5b)
8 + 7b = 10b + (8 * -7 + 5b * -7)
8 + 7b = 10b + (-56 + -35b)

Reorder the terms:
8 + 7b = -56 + 10b + -35b

Combine like terms: 10b + -35b = -25b
8 + 7b = -56 + -25b

Solving
8 + 7b = -56 + -25b

Solving for variable 'b'.

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

Add '25b' to each side of the equation.
8 + 7b + 25b = -56 + -25b + 25b

Combine like terms: 7b + 25b = 32b
8 + 32b = -56 + -25b + 25b

Combine like terms: -25b + 25b = 0
8 + 32b = -56 + 0
8 + 32b = -56

Add '-8' to each side of the equation.
8 + -8 + 32b = -56 + -8

Combine like terms: 8 + -8 = 0
0 + 32b = -56 + -8
32b = -56 + -8

Combine like terms: -56 + -8 = -64
32b = -64

Divide each side by '32'.
b = -2

Simplifying
b = -2

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