9a+4-5a=

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


Simplifying
9a + 4 + -5a = 0

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

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

Solving
4 + 4a = 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 + 4a = 0 + -4

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

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

Divide each side by '4'.
a = -1

Simplifying
a = -1

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