7-5(-7b-1)=-8(3-4b)

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Solution for 7-5(-7b-1)=-8(3-4b) equation:


Simplifying
7 + -5(-7b + -1) = -8(3 + -4b)

Reorder the terms:
7 + -5(-1 + -7b) = -8(3 + -4b)
7 + (-1 * -5 + -7b * -5) = -8(3 + -4b)
7 + (5 + 35b) = -8(3 + -4b)

Combine like terms: 7 + 5 = 12
12 + 35b = -8(3 + -4b)
12 + 35b = (3 * -8 + -4b * -8)
12 + 35b = (-24 + 32b)

Solving
12 + 35b = -24 + 32b

Solving for variable 'b'.

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

Add '-32b' to each side of the equation.
12 + 35b + -32b = -24 + 32b + -32b

Combine like terms: 35b + -32b = 3b
12 + 3b = -24 + 32b + -32b

Combine like terms: 32b + -32b = 0
12 + 3b = -24 + 0
12 + 3b = -24

Add '-12' to each side of the equation.
12 + -12 + 3b = -24 + -12

Combine like terms: 12 + -12 = 0
0 + 3b = -24 + -12
3b = -24 + -12

Combine like terms: -24 + -12 = -36
3b = -36

Divide each side by '3'.
b = -12

Simplifying
b = -12

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