(3+9)-2x+3=x-6

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Solution for (3+9)-2x+3=x-6 equation:


Simplifying
(3 + 9) + -2x + 3 = x + -6

Combine like terms: 3 + 9 = 12
(12) + -2x + 3 = x + -6
12 + -2x + 3 = x + -6

Reorder the terms:
12 + 3 + -2x = x + -6

Combine like terms: 12 + 3 = 15
15 + -2x = x + -6

Reorder the terms:
15 + -2x = -6 + x

Solving
15 + -2x = -6 + 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.
15 + -2x + -1x = -6 + x + -1x

Combine like terms: -2x + -1x = -3x
15 + -3x = -6 + x + -1x

Combine like terms: x + -1x = 0
15 + -3x = -6 + 0
15 + -3x = -6

Add '-15' to each side of the equation.
15 + -15 + -3x = -6 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = -6 + -15
-3x = -6 + -15

Combine like terms: -6 + -15 = -21
-3x = -21

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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