-18=-a

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Solution for -18=-a equation:


Simplifying
-18 = -1a

Solving
-18 = -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 = -1a + a

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

Add '18' to each side of the equation.
-18 + 18 + a = 0 + 18

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

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

Simplifying
a = 18

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