18-a=-270

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Solution for 18-a=-270 equation: 


Simplifying
18 + -1a = -270

Solving
18 + -1a = -270

Solving for variable 'a'.

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

Add '-18' to each side of the equation.
18 + -18 + -1a = -270 + -18

Combine like terms: 18 + -18 = 0
0 + -1a = -270 + -18
-1a = -270 + -18

Combine like terms: -270 + -18 = -288
-1a = -288

Divide each side by '-1'.
a = 288

Simplifying
a = 288

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