18-12-x+6=15

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Solution for 18-12-x+6=15 equation:


Simplifying
18 + -12 + -1x + 6 = 15

Reorder the terms:
18 + -12 + 6 + -1x = 15

Combine like terms: 18 + -12 = 6
6 + 6 + -1x = 15

Combine like terms: 6 + 6 = 12
12 + -1x = 15

Solving
12 + -1x = 15

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 = 15 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = 15 + -12
-1x = 15 + -12

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

Divide each side by '-1'.
x = -3

Simplifying
x = -3

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