9-7x-7x=79

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Solution for 9-7x-7x=79 equation: 


Simplifying
9 + -7x + -7x = 79

Combine like terms: -7x + -7x = -14x
9 + -14x = 79

Solving
9 + -14x = 79

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 + -14x = 79 + -9

Combine like terms: 9 + -9 = 0
0 + -14x = 79 + -9
-14x = 79 + -9

Combine like terms: 79 + -9 = 70
-14x = 70

Divide each side by '-14'.
x = -5

Simplifying
x = -5

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