-6x+9x=1+20

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Solution for -6x+9x=1+20 equation: 


Simplifying
-6x + 9x = 1 + 20

Combine like terms: -6x + 9x = 3x
3x = 1 + 20

Combine like terms: 1 + 20 = 21
3x = 21

Solving
3x = 21

Solving for variable 'x'.

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

Divide each side by '3'.
x = 7

Simplifying
x = 7

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