21x+17=30x-19

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Solution for 21x+17=30x-19 equation: 



21x+17=30x-19

We move all terms to the left:

21x+17-(30x-19)=0

We get rid of parentheses

21x-30x+19+17=0

We add all the numbers together, and all the variables

-9x+36=0

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

-9x=-36

x=-36/-9

x=+4

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