75=15x+30(1.5-x)

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Solution for 75=15x+30(1.5-x) equation: 



75=15x+30(1.5-x)

We move all terms to the left:

75-(15x+30(1.5-x))=0

We add all the numbers together, and all the variables

-(15x+30(-1x+1.5))+75=0



We calculate terms in parentheses: -(15x+30(-1x+1.5)), so:

15x+30(-1x+1.5)

We multiply parentheses

15x-30x+45

We add all the numbers together, and all the variables

-15x+45

Back to the equation:

-(-15x+45)



We get rid of parentheses

15x-45+75=0

We add all the numbers together, and all the variables

15x+30=0

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

15x=-30

x=-30/15

x=-2

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