-2x+12+9x-42=-6+24+2x+x

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Solution for -2x+12+9x-42=-6+24+2x+x equation:


Simplifying
-2x + 12 + 9x + -42 = -6 + 24 + 2x + x

Reorder the terms:
12 + -42 + -2x + 9x = -6 + 24 + 2x + x

Combine like terms: 12 + -42 = -30
-30 + -2x + 9x = -6 + 24 + 2x + x

Combine like terms: -2x + 9x = 7x
-30 + 7x = -6 + 24 + 2x + x

Combine like terms: -6 + 24 = 18
-30 + 7x = 18 + 2x + x

Combine like terms: 2x + x = 3x
-30 + 7x = 18 + 3x

Solving
-30 + 7x = 18 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-30 + 7x + -3x = 18 + 3x + -3x

Combine like terms: 7x + -3x = 4x
-30 + 4x = 18 + 3x + -3x

Combine like terms: 3x + -3x = 0
-30 + 4x = 18 + 0
-30 + 4x = 18

Add '30' to each side of the equation.
-30 + 30 + 4x = 18 + 30

Combine like terms: -30 + 30 = 0
0 + 4x = 18 + 30
4x = 18 + 30

Combine like terms: 18 + 30 = 48
4x = 48

Divide each side by '4'.
x = 12

Simplifying
x = 12

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