18+6-12=-4(2-x)+9

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Solution for 18+6-12=-4(2-x)+9 equation:


Simplifying
18 + 6 + -12 = -4(2 + -1x) + 9

Combine like terms: 18 + 6 = 24
24 + -12 = -4(2 + -1x) + 9

Combine like terms: 24 + -12 = 12
12 = -4(2 + -1x) + 9
12 = (2 * -4 + -1x * -4) + 9
12 = (-8 + 4x) + 9

Reorder the terms:
12 = -8 + 9 + 4x

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

Solving
12 = 1 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
12 + -4x = 1 + 4x + -4x

Combine like terms: 4x + -4x = 0
12 + -4x = 1 + 0
12 + -4x = 1

Add '-12' to each side of the equation.
12 + -12 + -4x = 1 + -12

Combine like terms: 12 + -12 = 0
0 + -4x = 1 + -12
-4x = 1 + -12

Combine like terms: 1 + -12 = -11
-4x = -11

Divide each side by '-4'.
x = 2.75

Simplifying
x = 2.75

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