-4=13+x

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Solution for -4=13+x equation:


Simplifying
-4 = 13 + x

Solving
-4 = 13 + 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.
-4 + -1x = 13 + x + -1x

Combine like terms: x + -1x = 0
-4 + -1x = 13 + 0
-4 + -1x = 13

Add '4' to each side of the equation.
-4 + 4 + -1x = 13 + 4

Combine like terms: -4 + 4 = 0
0 + -1x = 13 + 4
-1x = 13 + 4

Combine like terms: 13 + 4 = 17
-1x = 17

Divide each side by '-1'.
x = -17

Simplifying
x = -17

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