-1080=-30(-4b)

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Solution for -1080=-30(-4b) equation:


Simplifying
-1080 = -30(-4b)

Remove parenthesis around (-4b)
-1080 = -30 * -4b

Multiply -30 * -4
-1080 = 120b

Solving
-1080 = 120b

Solving for variable 'b'.

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

Add '-120b' to each side of the equation.
-1080 + -120b = 120b + -120b

Combine like terms: 120b + -120b = 0
-1080 + -120b = 0

Add '1080' to each side of the equation.
-1080 + 1080 + -120b = 0 + 1080

Combine like terms: -1080 + 1080 = 0
0 + -120b = 0 + 1080
-120b = 0 + 1080

Combine like terms: 0 + 1080 = 1080
-120b = 1080

Divide each side by '-120'.
b = -9

Simplifying
b = -9

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