10+9a-4a=0

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Solution for 10+9a-4a=0 equation: 


Simplifying
10 + 9a + -4a = 0

Combine like terms: 9a + -4a = 5a
10 + 5a = 0

Solving
10 + 5a = 0

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + 5a = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 5a = 0 + -10
5a = 0 + -10

Combine like terms: 0 + -10 = -10
5a = -10

Divide each side by '5'.
a = -2

Simplifying
a = -2

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