-12=-4b-b+7b

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Solution for -12=-4b-b+7b equation:


Simplifying
-12 = -4b + -1b + 7b

Combine like terms: -4b + -1b = -5b
-12 = -5b + 7b

Combine like terms: -5b + 7b = 2b
-12 = 2b

Solving
-12 = 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
-12 + -2b = 2b + -2b

Combine like terms: 2b + -2b = 0
-12 + -2b = 0

Add '12' to each side of the equation.
-12 + 12 + -2b = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -2b = 0 + 12
-2b = 0 + 12

Combine like terms: 0 + 12 = 12
-2b = 12

Divide each side by '-2'.
b = -6

Simplifying
b = -6

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