18+(-x)=20

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Solution for 18+(-x)=20 equation: 


Simplifying
18 + (-1x) = 20

Solving
18 + (-1x) = 20

Solving for variable 'x'.

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

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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