3.5(7-x)+28=97-4.5(3x+21)

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Solution for 3.5(7-x)+28=97-4.5(3x+21) equation: 



3.5(7-x)+28=97-4.5(3x+21)

We move all terms to the left:

3.5(7-x)+28-(97-4.5(3x+21))=0

We add all the numbers together, and all the variables

3.5(-1x+7)-(97-4.5(3x+21))+28=0

We multiply parentheses

-3.5x-(97-4.5(3x+21))+24.5+28=0



We calculate terms in parentheses: -(97-4.5(3x+21)), so:

97-4.5(3x+21)

determiningTheFunctionDomain
-4.5(3x+21)+97

We multiply parentheses

-13.5x-94.5+97

We add all the numbers together, and all the variables

-13.5x+2.5

Back to the equation:

-(-13.5x+2.5)



We add all the numbers together, and all the variables

-3.5x-(-13.5x+2.5)+52.5=0

We get rid of parentheses

-3.5x+13.5x-2.5+52.5=0

We add all the numbers together, and all the variables

10x+50=0

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

10x=-50

x=-50/10

x=-5

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