-(x+8)+2x-4=9

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Solution for -(x+8)+2x-4=9 equation:


Simplifying
-1(x + 8) + 2x + -4 = 9

Reorder the terms:
-1(8 + x) + 2x + -4 = 9
(8 * -1 + x * -1) + 2x + -4 = 9
(-8 + -1x) + 2x + -4 = 9

Reorder the terms:
-8 + -4 + -1x + 2x = 9

Combine like terms: -8 + -4 = -12
-12 + -1x + 2x = 9

Combine like terms: -1x + 2x = 1x
-12 + 1x = 9

Solving
-12 + 1x = 9

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 1x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 1x = 9 + 12
1x = 9 + 12

Combine like terms: 9 + 12 = 21
1x = 21

Divide each side by '1'.
x = 21

Simplifying
x = 21

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