a-5=15

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Solution for a-5=15 equation: 


Simplifying
a + -5 = 15

Reorder the terms:
-5 + a = 15

Solving
-5 + a = 15

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + a = 15 + 5

Combine like terms: -5 + 5 = 0
0 + a = 15 + 5
a = 15 + 5

Combine like terms: 15 + 5 = 20
a = 20

Simplifying
a = 20

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