-a+15=30

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Solution for -a+15=30 equation:


Simplifying
-1a + 15 = 30

Reorder the terms:
15 + -1a = 30

Solving
15 + -1a = 30

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + -1a = 30 + -15

Combine like terms: 15 + -15 = 0
0 + -1a = 30 + -15
-1a = 30 + -15

Combine like terms: 30 + -15 = 15
-1a = 15

Divide each side by '-1'.
a = -15

Simplifying
a = -15

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