30x=10(8-x)

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Solution for 30x=10(8-x) equation: 



30x=10(8-x)

We move all terms to the left:

30x-(10(8-x))=0

We add all the numbers together, and all the variables

30x-(10(-1x+8))=0



We calculate terms in parentheses: -(10(-1x+8)), so:

10(-1x+8)

We multiply parentheses

-10x+80

Back to the equation:

-(-10x+80)



We get rid of parentheses

30x+10x-80=0

We add all the numbers together, and all the variables

40x-80=0

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

40x=80

x=80/40

x=2

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