4(x+5)=2(x-40)

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Solution for 4(x+5)=2(x-40) equation: 



4(x+5)=2(x-40)

We move all terms to the left:

4(x+5)-(2(x-40))=0

We multiply parentheses

4x-(2(x-40))+20=0



We calculate terms in parentheses: -(2(x-40)), so:

2(x-40)

We multiply parentheses

2x-80

Back to the equation:

-(2x-80)



We get rid of parentheses

4x-2x+80+20=0

We add all the numbers together, and all the variables

2x+100=0

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

2x=-100

x=-100/2

x=-50

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