2a-8a=-18

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Solution for 2a-8a=-18 equation: 


Simplifying
2a + -8a = -18

Combine like terms: 2a + -8a = -6a
-6a = -18

Solving
-6a = -18

Solving for variable 'a'.

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

Divide each side by '-6'.
a = 3

Simplifying
a = 3

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