3.5(20)+7x=4.5(20+x)

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Solution for 3.5(20)+7x=4.5(20+x) equation: 



3.5(20)+7x=4.5(20+x)

We move all terms to the left:

3.5(20)+7x-(4.5(20+x))=0

We add all the numbers together, and all the variables

7x-(4.5(x+20))+3.520=0

We add all the numbers together, and all the variables

7x-(4.5(x+20))+3.52=0



We calculate terms in parentheses: -(4.5(x+20)), so:

4.5(x+20)

We multiply parentheses

4.5x+90

Back to the equation:

-(4.5x+90)



We get rid of parentheses

7x-4.5x-90+3.52=0

We add all the numbers together, and all the variables

2.5x-86.48=0

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

2.5x=86.48

x=86.48/2.5

x=34+1/1.6891891891892

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