20(x+9)=15(2x-2)

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Solution for 20(x+9)=15(2x-2) equation:


Simplifying
20(x + 9) = 15(2x + -2)

Reorder the terms:
20(9 + x) = 15(2x + -2)
(9 * 20 + x * 20) = 15(2x + -2)
(180 + 20x) = 15(2x + -2)

Reorder the terms:
180 + 20x = 15(-2 + 2x)
180 + 20x = (-2 * 15 + 2x * 15)
180 + 20x = (-30 + 30x)

Solving
180 + 20x = -30 + 30x

Solving for variable 'x'.

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

Add '-30x' to each side of the equation.
180 + 20x + -30x = -30 + 30x + -30x

Combine like terms: 20x + -30x = -10x
180 + -10x = -30 + 30x + -30x

Combine like terms: 30x + -30x = 0
180 + -10x = -30 + 0
180 + -10x = -30

Add '-180' to each side of the equation.
180 + -180 + -10x = -30 + -180

Combine like terms: 180 + -180 = 0
0 + -10x = -30 + -180
-10x = -30 + -180

Combine like terms: -30 + -180 = -210
-10x = -210

Divide each side by '-10'.
x = 21

Simplifying
x = 21

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