4a/9=21

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Solution for 4a/9=21 equation: 



4a/9=21

We move all terms to the left:

4a/9-(21)=0

We multiply all the terms by the denominator


4a-21*9=0

We add all the numbers together, and all the variables

4a-189=0

We move all terms containing a to the left, all other terms to the right

4a=189

a=189/4

a=47+1/4

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