a+(3/4)=21

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Solution for a+(3/4)=21 equation: 



a+(3/4)=21

We move all terms to the left:

a+(3/4)-(21)=0

determiningTheFunctionDomain
a-21+(3/4)=0

We add all the numbers together, and all the variables

a-21+(+3/4)=0

We get rid of parentheses

a-21+3/4=0

We multiply all the terms by the denominator


a*4+3-21*4=0

We add all the numbers together, and all the variables

a*4-81=0

Wy multiply elements

4a-81=0

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

4a=81

a=81/4

a=20+1/4

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