3(15+x)=2(100-x)

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Solution for 3(15+x)=2(100-x) equation: 



3(15+x)=2(100-x)

We move all terms to the left:

3(15+x)-(2(100-x))=0

We add all the numbers together, and all the variables

3(x+15)-(2(-1x+100))=0

We multiply parentheses

3x-(2(-1x+100))+45=0



We calculate terms in parentheses: -(2(-1x+100)), so:

2(-1x+100)

We multiply parentheses

-2x+200

Back to the equation:

-(-2x+200)



We get rid of parentheses

3x+2x-200+45=0

We add all the numbers together, and all the variables

5x-155=0

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

5x=155

x=155/5

x=31

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