3x+18=20-2x

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Solution for 3x+18=20-2x equation:


Simplifying
3x + 18 = 20 + -2x

Reorder the terms:
18 + 3x = 20 + -2x

Solving
18 + 3x = 20 + -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.
18 + 3x + 2x = 20 + -2x + 2x

Combine like terms: 3x + 2x = 5x
18 + 5x = 20 + -2x + 2x

Combine like terms: -2x + 2x = 0
18 + 5x = 20 + 0
18 + 5x = 20

Add '-18' to each side of the equation.
18 + -18 + 5x = 20 + -18

Combine like terms: 18 + -18 = 0
0 + 5x = 20 + -18
5x = 20 + -18

Combine like terms: 20 + -18 = 2
5x = 2

Divide each side by '5'.
x = 0.4

Simplifying
x = 0.4

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