7x-3=2x+4=15x-21

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Solution for 7x-3=2x+4=15x-21 equation: 



7x-3=2x+4=15x-21

We move all terms to the left:

7x-3-(2x+4)=0

We get rid of parentheses

7x-2x-4-3=0

We add all the numbers together, and all the variables

5x-7=0

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

5x=7

x=7/5

x=1+2/5

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