7x+12=x+30

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Solution for 7x+12=x+30 equation:


Simplifying
7x + 12 = x + 30

Reorder the terms:
12 + 7x = x + 30

Reorder the terms:
12 + 7x = 30 + x

Solving
12 + 7x = 30 + 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.
12 + 7x + -1x = 30 + x + -1x

Combine like terms: 7x + -1x = 6x
12 + 6x = 30 + x + -1x

Combine like terms: x + -1x = 0
12 + 6x = 30 + 0
12 + 6x = 30

Add '-12' to each side of the equation.
12 + -12 + 6x = 30 + -12

Combine like terms: 12 + -12 = 0
0 + 6x = 30 + -12
6x = 30 + -12

Combine like terms: 30 + -12 = 18
6x = 18

Divide each side by '6'.
x = 3

Simplifying
x = 3

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