9x-4-8x=9

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Solution for 9x-4-8x=9 equation: 


Simplifying
9x + -4 + -8x = 9

Reorder the terms:
-4 + 9x + -8x = 9

Combine like terms: 9x + -8x = 1x
-4 + 1x = 9

Solving
-4 + 1x = 9

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 1x = 9 + 4

Combine like terms: -4 + 4 = 0
0 + 1x = 9 + 4
1x = 9 + 4

Combine like terms: 9 + 4 = 13
1x = 13

Divide each side by '1'.
x = 13

Simplifying
x = 13

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