(-2a-9)+(9+4)=

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Solution for (-2a-9)+(9+4)= equation:


Simplifying
(-2a + -9) + (9 + 4) = 0

Reorder the terms:
(-9 + -2a) + (9 + 4) = 0

Remove parenthesis around (-9 + -2a)
-9 + -2a + (9 + 4) = 0

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

Reorder the terms:
-9 + 13 + -2a = 0

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

Solving
4 + -2a = 0

Solving for variable 'a'.

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

Add '-4' to each side of the equation.
4 + -4 + -2a = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -2a = 0 + -4
-2a = 0 + -4

Combine like terms: 0 + -4 = -4
-2a = -4

Divide each side by '-2'.
a = 2

Simplifying
a = 2

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