12x-100=2x+90

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Solution for 12x-100=2x+90 equation:


Simplifying
12x + -100 = 2x + 90

Reorder the terms:
-100 + 12x = 2x + 90

Reorder the terms:
-100 + 12x = 90 + 2x

Solving
-100 + 12x = 90 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-100 + 12x + -2x = 90 + 2x + -2x

Combine like terms: 12x + -2x = 10x
-100 + 10x = 90 + 2x + -2x

Combine like terms: 2x + -2x = 0
-100 + 10x = 90 + 0
-100 + 10x = 90

Add '100' to each side of the equation.
-100 + 100 + 10x = 90 + 100

Combine like terms: -100 + 100 = 0
0 + 10x = 90 + 100
10x = 90 + 100

Combine like terms: 90 + 100 = 190
10x = 190

Divide each side by '10'.
x = 19

Simplifying
x = 19

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