-90=-5(-3x)

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Solution for -90=-5(-3x) equation:


Simplifying
-90 = -5(-3x)

Remove parenthesis around (-3x)
-90 = -5 * -3x

Multiply -5 * -3
-90 = 15x

Solving
-90 = 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-90 + -15x = 15x + -15x

Combine like terms: 15x + -15x = 0
-90 + -15x = 0

Add '90' to each side of the equation.
-90 + 90 + -15x = 0 + 90

Combine like terms: -90 + 90 = 0
0 + -15x = 0 + 90
-15x = 0 + 90

Combine like terms: 0 + 90 = 90
-15x = 90

Divide each side by '-15'.
x = -6

Simplifying
x = -6

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