9+5a+2a=9

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Solution for 9+5a+2a=9 equation: 


Simplifying
9 + 5a + 2a = 9

Combine like terms: 5a + 2a = 7a
9 + 7a = 9

Add '-9' to each side of the equation.
9 + -9 + 7a = 9 + -9

Combine like terms: 9 + -9 = 0
0 + 7a = 9 + -9
7a = 9 + -9

Combine like terms: 9 + -9 = 0
7a = 0

Solving
7a = 0

Solving for variable 'a'.

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

Divide each side by '7'.
a = 0

Simplifying
a = 0

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