(9a-5)+(4a+7)=

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Solution for (9a-5)+(4a+7)= equation:


Simplifying
(9a + -5) + (4a + 7) = 0

Reorder the terms:
(-5 + 9a) + (4a + 7) = 0

Remove parenthesis around (-5 + 9a)
-5 + 9a + (4a + 7) = 0

Reorder the terms:
-5 + 9a + (7 + 4a) = 0

Remove parenthesis around (7 + 4a)
-5 + 9a + 7 + 4a = 0

Reorder the terms:
-5 + 7 + 9a + 4a = 0

Combine like terms: -5 + 7 = 2
2 + 9a + 4a = 0

Combine like terms: 9a + 4a = 13a
2 + 13a = 0

Solving
2 + 13a = 0

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 13a = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 13a = 0 + -2
13a = 0 + -2

Combine like terms: 0 + -2 = -2
13a = -2

Divide each side by '13'.
a = -0.1538461538

Simplifying
a = -0.1538461538

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