x-9+5x=21+2x

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


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

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

Combine like terms: x + 5x = 6x
-9 + 6x = 21 + 2x

Solving
-9 + 6x = 21 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-9 + 6x + -2x = 21 + 2x + -2x

Combine like terms: 6x + -2x = 4x
-9 + 4x = 21 + 2x + -2x

Combine like terms: 2x + -2x = 0
-9 + 4x = 21 + 0
-9 + 4x = 21

Add '9' to each side of the equation.
-9 + 9 + 4x = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 4x = 21 + 9
4x = 21 + 9

Combine like terms: 21 + 9 = 30
4x = 30

Divide each side by '4'.
x = 7.5

Simplifying
x = 7.5

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