120=3(-6b-8)

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Solution for 120=3(-6b-8) equation:


Simplifying
120 = 3(-6b + -8)

Reorder the terms:
120 = 3(-8 + -6b)
120 = (-8 * 3 + -6b * 3)
120 = (-24 + -18b)

Solving
120 = -24 + -18b

Solving for variable 'b'.

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

Add '18b' to each side of the equation.
120 + 18b = -24 + -18b + 18b

Combine like terms: -18b + 18b = 0
120 + 18b = -24 + 0
120 + 18b = -24

Add '-120' to each side of the equation.
120 + -120 + 18b = -24 + -120

Combine like terms: 120 + -120 = 0
0 + 18b = -24 + -120
18b = -24 + -120

Combine like terms: -24 + -120 = -144
18b = -144

Divide each side by '18'.
b = -8

Simplifying
b = -8

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