-21-x=x+24

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Solution for -21-x=x+24 equation:


Simplifying
-21 + -1x = x + 24

Reorder the terms:
-21 + -1x = 24 + x

Solving
-21 + -1x = 24 + 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 + -1x = 24 + x + -1x

Combine like terms: -1x + -1x = -2x
-21 + -2x = 24 + x + -1x

Combine like terms: x + -1x = 0
-21 + -2x = 24 + 0
-21 + -2x = 24

Add '21' to each side of the equation.
-21 + 21 + -2x = 24 + 21

Combine like terms: -21 + 21 = 0
0 + -2x = 24 + 21
-2x = 24 + 21

Combine like terms: 24 + 21 = 45
-2x = 45

Divide each side by '-2'.
x = -22.5

Simplifying
x = -22.5

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