a*2+9a+18=0

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Solution for a*2+9a+18=0 equation:


Simplifying
a * 2 + 9a + 18 = 0

Reorder the terms for easier multiplication:
2a + 9a + 18 = 0

Reorder the terms:
18 + 2a + 9a = 0

Combine like terms: 2a + 9a = 11a
18 + 11a = 0

Solving
18 + 11a = 0

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 + 11a = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 11a = 0 + -18
11a = 0 + -18

Combine like terms: 0 + -18 = -18
11a = -18

Divide each side by '11'.
a = -1.636363636

Simplifying
a = -1.636363636

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