9(x-20)-8(x+25)=20-4(x-30)

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Solution for 9(x-20)-8(x+25)=20-4(x-30) equation: 



9(x-20)-8(x+25)=20-4(x-30)

We move all terms to the left:

9(x-20)-8(x+25)-(20-4(x-30))=0

We multiply parentheses

9x-8x-(20-4(x-30))-180-200=0



We calculate terms in parentheses: -(20-4(x-30)), so:

20-4(x-30)

determiningTheFunctionDomain
-4(x-30)+20

We multiply parentheses

-4x+120+20

We add all the numbers together, and all the variables

-4x+140

Back to the equation:

-(-4x+140)



We add all the numbers together, and all the variables

x-(-4x+140)-380=0

We get rid of parentheses

x+4x-140-380=0

We add all the numbers together, and all the variables

5x-520=0

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

5x=520

x=520/5

x=104

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