7x-3(x-1)=21(2x+3)

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Solution for 7x-3(x-1)=21(2x+3) equation: 



7x-3(x-1)=21(2x+3)

We move all terms to the left:

7x-3(x-1)-(21(2x+3))=0

We multiply parentheses

7x-3x-(21(2x+3))+3=0



We calculate terms in parentheses: -(21(2x+3)), so:

21(2x+3)

We multiply parentheses

42x+63

Back to the equation:

-(42x+63)



We add all the numbers together, and all the variables

4x-(42x+63)+3=0

We get rid of parentheses

4x-42x-63+3=0

We add all the numbers together, and all the variables

-38x-60=0

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

-38x=60

x=60/-38

x=-1+11/19

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