30(x-40)=45(x)

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Solution for 30(x-40)=45(x) equation: 



30(x-40)=45(x)

We move all terms to the left:

30(x-40)-(45(x))=0

determiningTheFunctionDomain
30(x-40)-45x=0

We add all the numbers together, and all the variables

-45x+30(x-40)=0

We multiply parentheses

-45x+30x-1200=0

We add all the numbers together, and all the variables

-15x-1200=0

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

-15x=1200

x=1200/-15

x=-80

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