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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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



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

3(x+4)

We multiply parentheses

3x+12

Back to the equation:

-(3x+12)



We get rid of parentheses

-7x-3x-12+7=0

We add all the numbers together, and all the variables

-10x-5=0

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

-10x=5

x=5/-10

x=-1/2

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