7+5x+7x=-139

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Solution for 7+5x+7x=-139 equation:


Simplifying
7 + 5x + 7x = -139

Combine like terms: 5x + 7x = 12x
7 + 12x = -139

Solving
7 + 12x = -139

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 12x = -139 + -7

Combine like terms: 7 + -7 = 0
0 + 12x = -139 + -7
12x = -139 + -7

Combine like terms: -139 + -7 = -146
12x = -146

Divide each side by '12'.
x = -12.16666667

Simplifying
x = -12.16666667

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