21+4x=8(3-7x)-3

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Solution for 21+4x=8(3-7x)-3 equation: 



21+4x=8(3-7x)-3

We move all terms to the left:

21+4x-(8(3-7x)-3)=0

We add all the numbers together, and all the variables

4x-(8(-7x+3)-3)+21=0



We calculate terms in parentheses: -(8(-7x+3)-3), so:

8(-7x+3)-3

We multiply parentheses

-56x+24-3

We add all the numbers together, and all the variables

-56x+21

Back to the equation:

-(-56x+21)



We get rid of parentheses

4x+56x-21+21=0

We add all the numbers together, and all the variables

60x=0

x=0/60

x=0

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