7x-12-x=100

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Solution for 7x-12-x=100 equation:


Simplifying
7x + -12 + -1x = 100

Reorder the terms:
-12 + 7x + -1x = 100

Combine like terms: 7x + -1x = 6x
-12 + 6x = 100

Solving
-12 + 6x = 100

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 + 6x = 100 + 12

Combine like terms: -12 + 12 = 0
0 + 6x = 100 + 12
6x = 100 + 12

Combine like terms: 100 + 12 = 112
6x = 112

Divide each side by '6'.
x = 18.66666667

Simplifying
x = 18.66666667

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