9(3a+6)=9(2a-4)

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Solution for 9(3a+6)=9(2a-4) equation:


Simplifying
9(3a + 6) = 9(2a + -4)

Reorder the terms:
9(6 + 3a) = 9(2a + -4)
(6 * 9 + 3a * 9) = 9(2a + -4)
(54 + 27a) = 9(2a + -4)

Reorder the terms:
54 + 27a = 9(-4 + 2a)
54 + 27a = (-4 * 9 + 2a * 9)
54 + 27a = (-36 + 18a)

Solving
54 + 27a = -36 + 18a

Solving for variable 'a'.

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

Add '-18a' to each side of the equation.
54 + 27a + -18a = -36 + 18a + -18a

Combine like terms: 27a + -18a = 9a
54 + 9a = -36 + 18a + -18a

Combine like terms: 18a + -18a = 0
54 + 9a = -36 + 0
54 + 9a = -36

Add '-54' to each side of the equation.
54 + -54 + 9a = -36 + -54

Combine like terms: 54 + -54 = 0
0 + 9a = -36 + -54
9a = -36 + -54

Combine like terms: -36 + -54 = -90
9a = -90

Divide each side by '9'.
a = -10

Simplifying
a = -10

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