-8(4-b)=7b-40

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Solution for -8(4-b)=7b-40 equation:


Simplifying
-8(4 + -1b) = 7b + -40
(4 * -8 + -1b * -8) = 7b + -40
(-32 + 8b) = 7b + -40

Reorder the terms:
-32 + 8b = -40 + 7b

Solving
-32 + 8b = -40 + 7b

Solving for variable 'b'.

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

Add '-7b' to each side of the equation.
-32 + 8b + -7b = -40 + 7b + -7b

Combine like terms: 8b + -7b = 1b
-32 + 1b = -40 + 7b + -7b

Combine like terms: 7b + -7b = 0
-32 + 1b = -40 + 0
-32 + 1b = -40

Add '32' to each side of the equation.
-32 + 32 + 1b = -40 + 32

Combine like terms: -32 + 32 = 0
0 + 1b = -40 + 32
1b = -40 + 32

Combine like terms: -40 + 32 = -8
1b = -8

Divide each side by '1'.
b = -8

Simplifying
b = -8

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