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(68.9257)(x)+(70.9249)(1-x)=69.72
We move all terms to the left:
(68.9257)(x)+(70.9249)(1-x)-(69.72)=0
We add all the numbers together, and all the variables
(68.9257)x+(70.9249)(-1x+1)-(69.72)=0
We add all the numbers together, and all the variables
(68.9257)x+(70.9249)(-1x+1)-69.72=0
We multiply parentheses
68.9257x+(70.9249)(-1x+1)-69.72=0
We multiply parentheses ..
68.9257x+(-70.9249x+70.9249)-69.72=0
We get rid of parentheses
68.9257x-70.9249x+70.9249-69.72=0
We add all the numbers together, and all the variables
-1.9992x+1.2049=0
We move all terms containing x to the left, all other terms to the right
-1.9992x=-1.2049
x=-1.2049/-1.9992
x=1/1.6592248319363
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