-8-13=x+20

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Solution for -8-13=x+20 equation:


Simplifying
-8 + -13 = x + 20

Combine like terms: -8 + -13 = -21
-21 = x + 20

Reorder the terms:
-21 = 20 + x

Solving
-21 = 20 + 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.
-21 + -1x = 20 + x + -1x

Combine like terms: x + -1x = 0
-21 + -1x = 20 + 0
-21 + -1x = 20

Add '21' to each side of the equation.
-21 + 21 + -1x = 20 + 21

Combine like terms: -21 + 21 = 0
0 + -1x = 20 + 21
-1x = 20 + 21

Combine like terms: 20 + 21 = 41
-1x = 41

Divide each side by '-1'.
x = -41

Simplifying
x = -41

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