6/15=a/21

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Solution for 6/15=a/21 equation:


6/15=a/21

We simplify the equation to the form, which is simple to understand 
6/15=a/21

Simplifying:
 + 0.4=a/21

Simplifying:
 + 0.4=0.047619047619a

We move all terms containing a to the left and all other terms to the right. 
-0.047619047619a=-0.4

We simplify left and right side of the equation. 
-0.047619047619a=-0.4

We divide both sides of the equation by -00.047619047619 to get a. 
a=8.40000000001

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