9a=-a-18

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Solution for 9a=-a-18 equation: 


Simplifying
9a = -1a + -18

Reorder the terms:
9a = -18 + -1a

Solving
9a = -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.
9a + a = -18 + -1a + a

Combine like terms: 9a + a = 10a
10a = -18 + -1a + a

Combine like terms: -1a + a = 0
10a = -18 + 0
10a = -18

Divide each side by '10'.
a = -1.8

Simplifying
a = -1.8

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