20-8+3x=18

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Solution for 20-8+3x=18 equation: 


Simplifying
20 + -8 + 3x = 18

Combine like terms: 20 + -8 = 12
12 + 3x = 18

Solving
12 + 3x = 18

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 3x = 18 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = 18 + -12
3x = 18 + -12

Combine like terms: 18 + -12 = 6
3x = 6

Divide each side by '3'.
x = 2

Simplifying
x = 2

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