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-.02(30)+0.5x=0.2(30+x)
We move all terms to the left:
-.02(30)+0.5x-(0.2(30+x))=0
We add all the numbers together, and all the variables
0.5x-(0.2(x+30))-.0230=0
We add all the numbers together, and all the variables
0.5x-(0.2(x+30))-0.023=0
We calculate terms in parentheses: -(0.2(x+30)), so:We get rid of parentheses
0.2(x+30)
We multiply parentheses
0.2x+6
Back to the equation:
-(0.2x+6)
0.5x-0.2x-6-0.023=0
We add all the numbers together, and all the variables
0.3x-6.023=0
We move all terms containing x to the left, all other terms to the right
0.3x=6.023
x=6.023/0.3
x=20+0.023/0.3
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