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7x-0.5(20+x)=0.2(20)
We move all terms to the left:
7x-0.5(20+x)-(0.2(20))=0
We add all the numbers together, and all the variables
7x-0.5(x+20)-(0.22)=0
We add all the numbers together, and all the variables
7x-0.5(x+20)-0.22=0
We multiply parentheses
7x-0.5x-10-0.22=0
We add all the numbers together, and all the variables
6.5x-10.22=0
We move all terms containing x to the left, all other terms to the right
6.5x=10.22
x=10.22/6.5
x=1+1/1.74731182796
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