-18+x=3

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Solution for -18+x=3 equation: 


Simplifying
-18 + x = 3

Solving
-18 + x = 3

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 + x = 3 + 18

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

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

Simplifying
x = 21

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