6x-7x+12=87

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Solution for 6x-7x+12=87 equation:


Simplifying
6x + -7x + 12 = 87

Reorder the terms:
12 + 6x + -7x = 87

Combine like terms: 6x + -7x = -1x
12 + -1x = 87

Solving
12 + -1x = 87

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -1x = 87 + -12

Combine like terms: 12 + -12 = 0
0 + -1x = 87 + -12
-1x = 87 + -12

Combine like terms: 87 + -12 = 75
-1x = 75

Divide each side by '-1'.
x = -75

Simplifying
x = -75

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