-2(-5-7b)=7b-4

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Solution for -2(-5-7b)=7b-4 equation: 


Simplifying
-2(-5 + -7b) = 7b + -4
(-5 * -2 + -7b * -2) = 7b + -4
(10 + 14b) = 7b + -4

Reorder the terms:
10 + 14b = -4 + 7b

Solving
10 + 14b = -4 + 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.
10 + 14b + -7b = -4 + 7b + -7b

Combine like terms: 14b + -7b = 7b
10 + 7b = -4 + 7b + -7b

Combine like terms: 7b + -7b = 0
10 + 7b = -4 + 0
10 + 7b = -4

Add '-10' to each side of the equation.
10 + -10 + 7b = -4 + -10

Combine like terms: 10 + -10 = 0
0 + 7b = -4 + -10
7b = -4 + -10

Combine like terms: -4 + -10 = -14
7b = -14

Divide each side by '7'.
b = -2

Simplifying
b = -2

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