-7x+21=-4(3x-3)-1

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Solution for -7x+21=-4(3x-3)-1 equation: 



-7x+21=-4(3x-3)-1

We move all terms to the left:

-7x+21-(-4(3x-3)-1)=0



We calculate terms in parentheses: -(-4(3x-3)-1), so:

-4(3x-3)-1

We multiply parentheses

-12x+12-1

We add all the numbers together, and all the variables

-12x+11

Back to the equation:

-(-12x+11)



We get rid of parentheses

-7x+12x-11+21=0

We add all the numbers together, and all the variables

5x+10=0

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

5x=-10

x=-10/5

x=-2

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