1-5x-7x=13

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Solution for 1-5x-7x=13 equation: 


Simplifying
1 + -5x + -7x = 13

Combine like terms: -5x + -7x = -12x
1 + -12x = 13

Solving
1 + -12x = 13

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + -12x = 13 + -1

Combine like terms: 1 + -1 = 0
0 + -12x = 13 + -1
-12x = 13 + -1

Combine like terms: 13 + -1 = 12
-12x = 12

Divide each side by '-12'.
x = -1

Simplifying
x = -1

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