9x-5=x-21

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Solution for 9x-5=x-21 equation:


Simplifying
9x + -5 = x + -21

Reorder the terms:
-5 + 9x = x + -21

Reorder the terms:
-5 + 9x = -21 + x

Solving
-5 + 9x = -21 + 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.
-5 + 9x + -1x = -21 + x + -1x

Combine like terms: 9x + -1x = 8x
-5 + 8x = -21 + x + -1x

Combine like terms: x + -1x = 0
-5 + 8x = -21 + 0
-5 + 8x = -21

Add '5' to each side of the equation.
-5 + 5 + 8x = -21 + 5

Combine like terms: -5 + 5 = 0
0 + 8x = -21 + 5
8x = -21 + 5

Combine like terms: -21 + 5 = -16
8x = -16

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

Simplifying
x = -2

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