7x+x-9=55

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Solution for 7x+x-9=55 equation: 


Simplifying
7x + x + -9 = 55

Reorder the terms:
-9 + 7x + x = 55

Combine like terms: 7x + x = 8x
-9 + 8x = 55

Solving
-9 + 8x = 55

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 8x = 55 + 9

Combine like terms: -9 + 9 = 0
0 + 8x = 55 + 9
8x = 55 + 9

Combine like terms: 55 + 9 = 64
8x = 64

Divide each side by '8'.
x = 8

Simplifying
x = 8

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