(7a+4)+(2a+4)=

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Solution for (7a+4)+(2a+4)= equation:


Simplifying
(7a + 4) + (2a + 4) = 0

Reorder the terms:
(4 + 7a) + (2a + 4) = 0

Remove parenthesis around (4 + 7a)
4 + 7a + (2a + 4) = 0

Reorder the terms:
4 + 7a + (4 + 2a) = 0

Remove parenthesis around (4 + 2a)
4 + 7a + 4 + 2a = 0

Reorder the terms:
4 + 4 + 7a + 2a = 0

Combine like terms: 4 + 4 = 8
8 + 7a + 2a = 0

Combine like terms: 7a + 2a = 9a
8 + 9a = 0

Solving
8 + 9a = 0

Solving for variable 'a'.

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

Add '-8' to each side of the equation.
8 + -8 + 9a = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 9a = 0 + -8
9a = 0 + -8

Combine like terms: 0 + -8 = -8
9a = -8

Divide each side by '9'.
a = -0.8888888889

Simplifying
a = -0.8888888889

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