-9=-5a-4a

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Solution for -9=-5a-4a equation:


Simplifying
-9 = -5a + -4a

Combine like terms: -5a + -4a = -9a
-9 = -9a

Solving
-9 = -9a

Solving for variable 'a'.

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

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

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

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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