18=-a+2

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Solution for 18=-a+2 equation:


Simplifying
18 = -1a + 2

Reorder the terms:
18 = 2 + -1a

Solving
18 = 2 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
18 + a = 2 + -1a + a

Combine like terms: -1a + a = 0
18 + a = 2 + 0
18 + a = 2

Add '-18' to each side of the equation.
18 + -18 + a = 2 + -18

Combine like terms: 18 + -18 = 0
0 + a = 2 + -18
a = 2 + -18

Combine like terms: 2 + -18 = -16
a = -16

Simplifying
a = -16

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