-9x-21=25-x

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Solution for -9x-21=25-x equation:


Simplifying
-9x + -21 = 25 + -1x

Reorder the terms:
-21 + -9x = 25 + -1x

Solving
-21 + -9x = 25 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-21 + -9x + x = 25 + -1x + x

Combine like terms: -9x + x = -8x
-21 + -8x = 25 + -1x + x

Combine like terms: -1x + x = 0
-21 + -8x = 25 + 0
-21 + -8x = 25

Add '21' to each side of the equation.
-21 + 21 + -8x = 25 + 21

Combine like terms: -21 + 21 = 0
0 + -8x = 25 + 21
-8x = 25 + 21

Combine like terms: 25 + 21 = 46
-8x = 46

Divide each side by '-8'.
x = -5.75

Simplifying
x = -5.75

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