30+x=18

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Solution for 30+x=18 equation: 


Simplifying
30 + x = 18

Solving
30 + x = 18

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + x = 18 + -30

Combine like terms: 30 + -30 = 0
0 + x = 18 + -30
x = 18 + -30

Combine like terms: 18 + -30 = -12
x = -12

Simplifying
x = -12

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