7x+42=x+12

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Solution for 7x+42=x+12 equation:


Simplifying
7x + 42 = x + 12

Reorder the terms:
42 + 7x = x + 12

Reorder the terms:
42 + 7x = 12 + x

Solving
42 + 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.
42 + 7x + -1x = 12 + x + -1x

Combine like terms: 7x + -1x = 6x
42 + 6x = 12 + x + -1x

Combine like terms: x + -1x = 0
42 + 6x = 12 + 0
42 + 6x = 12

Add '-42' to each side of the equation.
42 + -42 + 6x = 12 + -42

Combine like terms: 42 + -42 = 0
0 + 6x = 12 + -42
6x = 12 + -42

Combine like terms: 12 + -42 = -30
6x = -30

Divide each side by '6'.
x = -5

Simplifying
x = -5

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