9-7x=159-42

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Solution for 9-7x=159-42 equation: 


Simplifying
9 + -7x = 159 + -42

Combine like terms: 159 + -42 = 117
9 + -7x = 117

Solving
9 + -7x = 117

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 + -7x = 117 + -9

Combine like terms: 9 + -9 = 0
0 + -7x = 117 + -9
-7x = 117 + -9

Combine like terms: 117 + -9 = 108
-7x = 108

Divide each side by '-7'.
x = -15.42857143

Simplifying
x = -15.42857143

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