5x-21+2x-9=x

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Solution for 5x-21+2x-9=x equation:


Simplifying
5x + -21 + 2x + -9 = x

Reorder the terms:
-21 + -9 + 5x + 2x = x

Combine like terms: -21 + -9 = -30
-30 + 5x + 2x = x

Combine like terms: 5x + 2x = 7x
-30 + 7x = x

Solving
-30 + 7x = 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.
-30 + 7x + -1x = x + -1x

Combine like terms: 7x + -1x = 6x
-30 + 6x = x + -1x

Combine like terms: x + -1x = 0
-30 + 6x = 0

Add '30' to each side of the equation.
-30 + 30 + 6x = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 6x = 0 + 30
6x = 0 + 30

Combine like terms: 0 + 30 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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