20=x+(x-10)*3

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Solution for 20=x+(x-10)*3 equation: 



20=x+(x-10)*3

We move all terms to the left:

20-(x+(x-10)*3)=0



We calculate terms in parentheses: -(x+(x-10)*3), so:

x+(x-10)*3

We multiply parentheses

x+3x-30

We add all the numbers together, and all the variables

4x-30

Back to the equation:

-(4x-30)



We get rid of parentheses

-4x+30+20=0

We add all the numbers together, and all the variables

-4x+50=0

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

-4x=-50

x=-50/-4

x=12+1/2

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