9(2-2a)=8(6+9a)-12a

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Solution for 9(2-2a)=8(6+9a)-12a equation:


Simplifying
9(2 + -2a) = 8(6 + 9a) + -12a
(2 * 9 + -2a * 9) = 8(6 + 9a) + -12a
(18 + -18a) = 8(6 + 9a) + -12a
18 + -18a = (6 * 8 + 9a * 8) + -12a
18 + -18a = (48 + 72a) + -12a

Combine like terms: 72a + -12a = 60a
18 + -18a = 48 + 60a

Solving
18 + -18a = 48 + 60a

Solving for variable 'a'.

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

Add '-60a' to each side of the equation.
18 + -18a + -60a = 48 + 60a + -60a

Combine like terms: -18a + -60a = -78a
18 + -78a = 48 + 60a + -60a

Combine like terms: 60a + -60a = 0
18 + -78a = 48 + 0
18 + -78a = 48

Add '-18' to each side of the equation.
18 + -18 + -78a = 48 + -18

Combine like terms: 18 + -18 = 0
0 + -78a = 48 + -18
-78a = 48 + -18

Combine like terms: 48 + -18 = 30
-78a = 30

Divide each side by '-78'.
a = -0.3846153846

Simplifying
a = -0.3846153846

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