-6(a+3)=9

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Solution for -6(a+3)=9 equation: 


Simplifying
-6(a + 3) = 9

Reorder the terms:
-6(3 + a) = 9
(3 * -6 + a * -6) = 9
(-18 + -6a) = 9

Solving
-18 + -6a = 9

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 + -6a = 9 + 18

Combine like terms: -18 + 18 = 0
0 + -6a = 9 + 18
-6a = 9 + 18

Combine like terms: 9 + 18 = 27
-6a = 27

Divide each side by '-6'.
a = -4.5

Simplifying
a = -4.5

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