20x-10-21x=7x+4

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Solution for 20x-10-21x=7x+4 equation: 



20x-10-21x=7x+4

We move all terms to the left:

20x-10-21x-(7x+4)=0

We add all the numbers together, and all the variables

-1x-(7x+4)-10=0

We get rid of parentheses

-1x-7x-4-10=0

We add all the numbers together, and all the variables

-8x-14=0

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

-8x=14

x=14/-8

x=-1+3/4

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