12-15-x=10-15

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Solution for 12-15-x=10-15 equation:


Simplifying
12 + -15 + -1x = 10 + -15

Combine like terms: 12 + -15 = -3
-3 + -1x = 10 + -15

Combine like terms: 10 + -15 = -5
-3 + -1x = -5

Solving
-3 + -1x = -5

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -1x = -5 + 3

Combine like terms: -3 + 3 = 0
0 + -1x = -5 + 3
-1x = -5 + 3

Combine like terms: -5 + 3 = -2
-1x = -2

Divide each side by '-1'.
x = 2

Simplifying
x = 2

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