3(1-5x)=-21-7x

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Solution for 3(1-5x)=-21-7x equation: 



3(1-5x)=-21-7x

We move all terms to the left:

3(1-5x)-(-21-7x)=0

We add all the numbers together, and all the variables

3(-5x+1)-(-7x-21)=0

We multiply parentheses

-15x-(-7x-21)+3=0

We get rid of parentheses

-15x+7x+21+3=0

We add all the numbers together, and all the variables

-8x+24=0

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

-8x=-24

x=-24/-8

x=+3

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