2x+15-x-3=18

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Solution for 2x+15-x-3=18 equation:


Simplifying
2x + 15 + -1x + -3 = 18

Reorder the terms:
15 + -3 + 2x + -1x = 18

Combine like terms: 15 + -3 = 12
12 + 2x + -1x = 18

Combine like terms: 2x + -1x = 1x
12 + 1x = 18

Solving
12 + 1x = 18

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 = 18 + -12

Combine like terms: 12 + -12 = 0
0 + 1x = 18 + -12
1x = 18 + -12

Combine like terms: 18 + -12 = 6
1x = 6

Divide each side by '1'.
x = 6

Simplifying
x = 6

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