-x-13=x+3

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Solution for -x-13=x+3 equation:


Simplifying
-1x + -13 = x + 3

Reorder the terms:
-13 + -1x = x + 3

Reorder the terms:
-13 + -1x = 3 + x

Solving
-13 + -1x = 3 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-13 + -1x + -1x = 3 + x + -1x

Combine like terms: -1x + -1x = -2x
-13 + -2x = 3 + x + -1x

Combine like terms: x + -1x = 0
-13 + -2x = 3 + 0
-13 + -2x = 3

Add '13' to each side of the equation.
-13 + 13 + -2x = 3 + 13

Combine like terms: -13 + 13 = 0
0 + -2x = 3 + 13
-2x = 3 + 13

Combine like terms: 3 + 13 = 16
-2x = 16

Divide each side by '-2'.
x = -8

Simplifying
x = -8

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