8+(-a)=15

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Solution for 8+(-a)=15 equation:


Simplifying
8 + (-1a) = 15

Solving
8 + (-1a) = 15

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + (-1a) = 15 + -8

Combine like terms: 8 + -8 = 0
0 + (-1a) = 15 + -8
(-1a) = 15 + -8

Combine like terms: 15 + -8 = 7
(-1a) = 7

Divide each side by '-1'.
a = -7

Simplifying
a = -7

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