(8a+8)+(12a+4)=9

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Solution for (8a+8)+(12a+4)=9 equation:


Simplifying
(8a + 8) + (12a + 4) = 9

Reorder the terms:
(8 + 8a) + (12a + 4) = 9

Remove parenthesis around (8 + 8a)
8 + 8a + (12a + 4) = 9

Reorder the terms:
8 + 8a + (4 + 12a) = 9

Remove parenthesis around (4 + 12a)
8 + 8a + 4 + 12a = 9

Reorder the terms:
8 + 4 + 8a + 12a = 9

Combine like terms: 8 + 4 = 12
12 + 8a + 12a = 9

Combine like terms: 8a + 12a = 20a
12 + 20a = 9

Solving
12 + 20a = 9

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 20a = 9 + -12

Combine like terms: 12 + -12 = 0
0 + 20a = 9 + -12
20a = 9 + -12

Combine like terms: 9 + -12 = -3
20a = -3

Divide each side by '20'.
a = -0.15

Simplifying
a = -0.15

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