3x+4x-7=12+x

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Solution for 3x+4x-7=12+x equation:


Simplifying
3x + 4x + -7 = 12 + x

Reorder the terms:
-7 + 3x + 4x = 12 + x

Combine like terms: 3x + 4x = 7x
-7 + 7x = 12 + x

Solving
-7 + 7x = 12 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-7 + 7x + -1x = 12 + x + -1x

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

Combine like terms: x + -1x = 0
-7 + 6x = 12 + 0
-7 + 6x = 12

Add '7' to each side of the equation.
-7 + 7 + 6x = 12 + 7

Combine like terms: -7 + 7 = 0
0 + 6x = 12 + 7
6x = 12 + 7

Combine like terms: 12 + 7 = 19
6x = 19

Divide each side by '6'.
x = 3.166666667

Simplifying
x = 3.166666667

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