7x+42=2x+12

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Solution for 7x+42=2x+12 equation:


Simplifying
7x + 42 = 2x + 12

Reorder the terms:
42 + 7x = 2x + 12

Reorder the terms:
42 + 7x = 12 + 2x

Solving
42 + 7x = 12 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
42 + 7x + -2x = 12 + 2x + -2x

Combine like terms: 7x + -2x = 5x
42 + 5x = 12 + 2x + -2x

Combine like terms: 2x + -2x = 0
42 + 5x = 12 + 0
42 + 5x = 12

Add '-42' to each side of the equation.
42 + -42 + 5x = 12 + -42

Combine like terms: 42 + -42 = 0
0 + 5x = 12 + -42
5x = 12 + -42

Combine like terms: 12 + -42 = -30
5x = -30

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

Simplifying
x = -6

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