7x+18+3x=12x-20

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Solution for 7x+18+3x=12x-20 equation:


Simplifying
7x + 18 + 3x = 12x + -20

Reorder the terms:
18 + 7x + 3x = 12x + -20

Combine like terms: 7x + 3x = 10x
18 + 10x = 12x + -20

Reorder the terms:
18 + 10x = -20 + 12x

Solving
18 + 10x = -20 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
18 + 10x + -12x = -20 + 12x + -12x

Combine like terms: 10x + -12x = -2x
18 + -2x = -20 + 12x + -12x

Combine like terms: 12x + -12x = 0
18 + -2x = -20 + 0
18 + -2x = -20

Add '-18' to each side of the equation.
18 + -18 + -2x = -20 + -18

Combine like terms: 18 + -18 = 0
0 + -2x = -20 + -18
-2x = -20 + -18

Combine like terms: -20 + -18 = -38
-2x = -38

Divide each side by '-2'.
x = 19

Simplifying
x = 19

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