x+(-3)=18

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Solution for x+(-3)=18 equation: 


Simplifying
x + (-3) = 18
x + -3 = 18

Reorder the terms:
-3 + x = 18

Solving
-3 + x = 18

Solving for variable 'x'.

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

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

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

Combine like terms: 18 + 3 = 21
x = 21

Simplifying
x = 21

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