a-30=55

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Solution for a-30=55 equation: 


Simplifying
a + -30 = 55

Reorder the terms:
-30 + a = 55

Solving
-30 + a = 55

Solving for variable 'a'.

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

Add '30' to each side of the equation.
-30 + 30 + a = 55 + 30

Combine like terms: -30 + 30 = 0
0 + a = 55 + 30
a = 55 + 30

Combine like terms: 55 + 30 = 85
a = 85

Simplifying
a = 85

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