3x-7+9x=18+5x-18

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Solution for 3x-7+9x=18+5x-18 equation:


Simplifying
3x + -7 + 9x = 18 + 5x + -18

Reorder the terms:
-7 + 3x + 9x = 18 + 5x + -18

Combine like terms: 3x + 9x = 12x
-7 + 12x = 18 + 5x + -18

Reorder the terms:
-7 + 12x = 18 + -18 + 5x

Combine like terms: 18 + -18 = 0
-7 + 12x = 0 + 5x
-7 + 12x = 5x

Solving
-7 + 12x = 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-7 + 12x + -5x = 5x + -5x

Combine like terms: 12x + -5x = 7x
-7 + 7x = 5x + -5x

Combine like terms: 5x + -5x = 0
-7 + 7x = 0

Add '7' to each side of the equation.
-7 + 7 + 7x = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 7x = 0 + 7
7x = 0 + 7

Combine like terms: 0 + 7 = 7
7x = 7

Divide each side by '7'.
x = 1

Simplifying
x = 1

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