6a-5=4a+9
Subtract 4a from each side
6a-4a-5=4a-4a+9
2a-5 = 9
Add 5 to each side
2a-5+5 = 9+5
2a = 14
Divide each side by 2
2a/2 = 14/2
a = 7
The solution to the equation is 7
a=6 is not a solution
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