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x=0.39(8x+30)
We move all terms to the left:
x-(0.39(8x+30))=0
We calculate terms in parentheses: -(0.39(8x+30)), so:We get rid of parentheses
0.39(8x+30)
We multiply parentheses
3.12x+11.7
Back to the equation:
-(3.12x+11.7)
x-3.12x-11.7=0
We add all the numbers together, and all the variables
-2.12x-11.7=0
We move all terms containing x to the left, all other terms to the right
-2.12x=11.7
x=11.7/-2.12
x=-5+1/1.9272727272727
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