3y*7=7*3y

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Solution for 3y*7=7*3y equation: 



3y*7=7*3y

We move all terms to the left:

3y*7-(7*3y)=0

We add all the numbers together, and all the variables

3y*7-(+7*3y)=0

Wy multiply elements

21y-(+7*3y)=0

We get rid of parentheses

21y-7*3y=0

Wy multiply elements

21y-21y=0

We add all the numbers together, and all the variables

=0

y=0/1

y=0

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