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0.8(10x+20)=2.9(0.2x+5)
We move all terms to the left:
0.8(10x+20)-(2.9(0.2x+5))=0
We multiply parentheses
8x-(2.9(0.2x+5))+16=0
We calculate terms in parentheses: -(2.9(0.2x+5)), so:We get rid of parentheses
2.9(0.2x+5)
We multiply parentheses
0x+14.5
We add all the numbers together, and all the variables
x+14.5
Back to the equation:
-(x+14.5)
8x-x-14.5+16=0
We add all the numbers together, and all the variables
7x+1.5=0
We move all terms containing x to the left, all other terms to the right
7x=-1.5
x=-1.5/7
x=-1/4.6666666666667
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