4y+y/5=21

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Solution for 4y+y/5=21 equation: 



4y+y/5=21

We move all terms to the left:

4y+y/5-(21)=0

We multiply all the terms by the denominator


4y*5+y-21*5=0

We add all the numbers together, and all the variables

y+4y*5-105=0

Wy multiply elements

y+20y-105=0

We add all the numbers together, and all the variables

21y-105=0

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

21y=105

y=105/21

y=5

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