-2(x+9)-12=20

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Solution for -2(x+9)-12=20 equation:


Simplifying
-2(x + 9) + -12 = 20

Reorder the terms:
-2(9 + x) + -12 = 20
(9 * -2 + x * -2) + -12 = 20
(-18 + -2x) + -12 = 20

Reorder the terms:
-18 + -12 + -2x = 20

Combine like terms: -18 + -12 = -30
-30 + -2x = 20

Solving
-30 + -2x = 20

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + -2x = 20 + 30

Combine like terms: -30 + 30 = 0
0 + -2x = 20 + 30
-2x = 20 + 30

Combine like terms: 20 + 30 = 50
-2x = 50

Divide each side by '-2'.
x = -25

Simplifying
x = -25

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