x=3(130-x)+30

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Solution for x=3(130-x)+30 equation: 



x=3(130-x)+30

We move all terms to the left:

x-(3(130-x)+30)=0

We add all the numbers together, and all the variables

x-(3(-1x+130)+30)=0



We calculate terms in parentheses: -(3(-1x+130)+30), so:

3(-1x+130)+30

We multiply parentheses

-3x+390+30

We add all the numbers together, and all the variables

-3x+420

Back to the equation:

-(-3x+420)



We get rid of parentheses

x+3x-420=0

We add all the numbers together, and all the variables

4x-420=0

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

4x=420

x=420/4

x=105

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