-90=-2x-4(-5x-9)

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Solution for -90=-2x-4(-5x-9) equation:


Simplifying
-90 = -2x + -4(-5x + -9)

Reorder the terms:
-90 = -2x + -4(-9 + -5x)
-90 = -2x + (-9 * -4 + -5x * -4)
-90 = -2x + (36 + 20x)

Reorder the terms:
-90 = 36 + -2x + 20x

Combine like terms: -2x + 20x = 18x
-90 = 36 + 18x

Solving
-90 = 36 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
-90 + -18x = 36 + 18x + -18x

Combine like terms: 18x + -18x = 0
-90 + -18x = 36 + 0
-90 + -18x = 36

Add '90' to each side of the equation.
-90 + 90 + -18x = 36 + 90

Combine like terms: -90 + 90 = 0
0 + -18x = 36 + 90
-18x = 36 + 90

Combine like terms: 36 + 90 = 126
-18x = 126

Divide each side by '-18'.
x = -7

Simplifying
x = -7

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