2a+9=18

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Solution for 2a+9=18 equation:



2a+9=18
We move all terms to the left:
2a+9-(18)=0
We add all the numbers together, and all the variables
2a-9=0
We move all terms containing a to the left, all other terms to the right
2a=9
a=9/2
a=4+1/2

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