9(a+2)=3(a-2)

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Solution for 9(a+2)=3(a-2) equation:


Simplifying
9(a + 2) = 3(a + -2)

Reorder the terms:
9(2 + a) = 3(a + -2)
(2 * 9 + a * 9) = 3(a + -2)
(18 + 9a) = 3(a + -2)

Reorder the terms:
18 + 9a = 3(-2 + a)
18 + 9a = (-2 * 3 + a * 3)
18 + 9a = (-6 + 3a)

Solving
18 + 9a = -6 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
18 + 9a + -3a = -6 + 3a + -3a

Combine like terms: 9a + -3a = 6a
18 + 6a = -6 + 3a + -3a

Combine like terms: 3a + -3a = 0
18 + 6a = -6 + 0
18 + 6a = -6

Add '-18' to each side of the equation.
18 + -18 + 6a = -6 + -18

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

Combine like terms: -6 + -18 = -24
6a = -24

Divide each side by '6'.
a = -4

Simplifying
a = -4

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