(3x)+x-12=64

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Solution for (3x)+x-12=64 equation: 


Simplifying
(3x) + x + -12 = 64

Reorder the terms:
-12 + (3x) + x = 64

Combine like terms: (3x) + x = 4x
-12 + 4x = 64

Solving
-12 + 4x = 64

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 = 64 + 12

Combine like terms: -12 + 12 = 0
0 + 4x = 64 + 12
4x = 64 + 12

Combine like terms: 64 + 12 = 76
4x = 76

Divide each side by '4'.
x = 19

Simplifying
x = 19

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