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

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


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

Reorder the terms:
9x + -9(-2 + x) = x + 20
9x + (-2 * -9 + x * -9) = x + 20
9x + (18 + -9x) = x + 20

Reorder the terms:
18 + 9x + -9x = x + 20

Combine like terms: 9x + -9x = 0
18 + 0 = x + 20
18 = x + 20

Reorder the terms:
18 = 20 + x

Solving
18 = 20 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
18 + -1x = 20 + x + -1x

Combine like terms: x + -1x = 0
18 + -1x = 20 + 0
18 + -1x = 20

Add '-18' to each side of the equation.
18 + -18 + -1x = 20 + -18

Combine like terms: 18 + -18 = 0
0 + -1x = 20 + -18
-1x = 20 + -18

Combine like terms: 20 + -18 = 2
-1x = 2

Divide each side by '-1'.
x = -2

Simplifying
x = -2

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