-x+21=x+5

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Solution for -x+21=x+5 equation:


Simplifying
-1x + 21 = x + 5

Reorder the terms:
21 + -1x = x + 5

Reorder the terms:
21 + -1x = 5 + x

Solving
21 + -1x = 5 + 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 = 5 + x + -1x

Combine like terms: -1x + -1x = -2x
21 + -2x = 5 + x + -1x

Combine like terms: x + -1x = 0
21 + -2x = 5 + 0
21 + -2x = 5

Add '-21' to each side of the equation.
21 + -21 + -2x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 5 + -21
-2x = 5 + -21

Combine like terms: 5 + -21 = -16
-2x = -16

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

Simplifying
x = 8

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