(2a+6)+(7a+3)=

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Solution for (2a+6)+(7a+3)= equation:


Simplifying
(2a + 6) + (7a + 3) = 0

Reorder the terms:
(6 + 2a) + (7a + 3) = 0

Remove parenthesis around (6 + 2a)
6 + 2a + (7a + 3) = 0

Reorder the terms:
6 + 2a + (3 + 7a) = 0

Remove parenthesis around (3 + 7a)
6 + 2a + 3 + 7a = 0

Reorder the terms:
6 + 3 + 2a + 7a = 0

Combine like terms: 6 + 3 = 9
9 + 2a + 7a = 0

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

Solving
9 + 9a = 0

Solving for variable 'a'.

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

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

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

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

Divide each side by '9'.
a = -1

Simplifying
a = -1

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