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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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

We get rid of parentheses

7x-4x+21-7+1=0

We add all the numbers together, and all the variables

3x+15=0

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

3x=-15

x=-15/3

x=-5

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