15-x-28=-31

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Solution for 15-x-28=-31 equation:


Simplifying
15 + -1x + -28 = -31

Reorder the terms:
15 + -28 + -1x = -31

Combine like terms: 15 + -28 = -13
-13 + -1x = -31

Solving
-13 + -1x = -31

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + -1x = -31 + 13

Combine like terms: -13 + 13 = 0
0 + -1x = -31 + 13
-1x = -31 + 13

Combine like terms: -31 + 13 = -18
-1x = -18

Divide each side by '-1'.
x = 18

Simplifying
x = 18

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