x-30=a

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Solution for x-30=a equation: 


Simplifying
x + -30 = a

Reorder the terms:
-30 + x = a

Solving
-30 + x = a

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 = 30 + a

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

Simplifying
x = 30 + a

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