28*27=x*21

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Solution for 28*27=x*21 equation: 



28*27=x*21

We move all terms to the left:

28*27-(x*21)=0

We add all the numbers together, and all the variables

-(+x*21)+28*27=0

We add all the numbers together, and all the variables

-(+x*21)+756=0

We get rid of parentheses

-x*21+756=0

Wy multiply elements

-21x+756=0

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

-21x=-756

x=-756/-21

x=+36

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