4x-7=10+21x

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Solution for 4x-7=10+21x equation: 



4x-7=10+21x

We move all terms to the left:

4x-7-(10+21x)=0

We add all the numbers together, and all the variables

4x-(21x+10)-7=0

We get rid of parentheses

4x-21x-10-7=0

We add all the numbers together, and all the variables

-17x-17=0

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

-17x=17

x=17/-17

x=-1

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