18=20+x

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Solution for 18=20+x equation:


Simplifying
18 = 20 + x

Solving
18 = 20 + 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.
18 + -1x = 20 + x + -1x

Combine like terms: x + -1x = 0
18 + -1x = 20 + 0
18 + -1x = 20

Add '-18' to each side of the equation.
18 + -18 + -1x = 20 + -18

Combine like terms: 18 + -18 = 0
0 + -1x = 20 + -18
-1x = 20 + -18

Combine like terms: 20 + -18 = 2
-1x = 2

Divide each side by '-1'.
x = -2

Simplifying
x = -2

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