15x-21=47-2x

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Solution for 15x-21=47-2x equation: 



15x-21=47-2x

We move all terms to the left:

15x-21-(47-2x)=0

We add all the numbers together, and all the variables

15x-(-2x+47)-21=0

We get rid of parentheses

15x+2x-47-21=0

We add all the numbers together, and all the variables

17x-68=0

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

17x=68

x=68/17

x=4

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