5(x-10)-7(x+10)=15-7(x-20)

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Solution for 5(x-10)-7(x+10)=15-7(x-20) equation: 



5(x-10)-7(x+10)=15-7(x-20)

We move all terms to the left:

5(x-10)-7(x+10)-(15-7(x-20))=0

We multiply parentheses

5x-7x-(15-7(x-20))-50-70=0



We calculate terms in parentheses: -(15-7(x-20)), so:

15-7(x-20)

determiningTheFunctionDomain
-7(x-20)+15

We multiply parentheses

-7x+140+15

We add all the numbers together, and all the variables

-7x+155

Back to the equation:

-(-7x+155)



We add all the numbers together, and all the variables

-2x-(-7x+155)-120=0

We get rid of parentheses

-2x+7x-155-120=0

We add all the numbers together, and all the variables

5x-275=0

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

5x=275

x=275/5

x=55

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