3X-12+X=20

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Solution for 3X-12+X=20 equation:


Simplifying
3X + -12 + X = 20

Reorder the terms:
-12 + 3X + X = 20

Combine like terms: 3X + X = 4X
-12 + 4X = 20

Solving
-12 + 4X = 20

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 + 4X = 20 + 12

Combine like terms: -12 + 12 = 0
0 + 4X = 20 + 12
4X = 20 + 12

Combine like terms: 20 + 12 = 32
4X = 32

Divide each side by '4'.
X = 8

Simplifying
X = 8

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