4x+2x-x=12+7-4

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Solution for 4x+2x-x=12+7-4 equation: 


Simplifying
4x + 2x + -1x = 12 + 7 + -4

Combine like terms: 4x + 2x = 6x
6x + -1x = 12 + 7 + -4

Combine like terms: 6x + -1x = 5x
5x = 12 + 7 + -4

Combine like terms: 12 + 7 = 19
5x = 19 + -4

Combine like terms: 19 + -4 = 15
5x = 15

Solving
5x = 15

Solving for variable 'x'.

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

Divide each side by '5'.
x = 3

Simplifying
x = 3

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