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0.007(4-k) + 0.07(k-3)=1
We simplify the equation to the form, which is simple to understand
0.007(4-k) + 0.07(k-3)=1
Reorder the terms in parentheses
+( + 0.028-0.007k) + 0.07*(k-3)=1
Remove unnecessary parentheses
+ 0.028-0.007k + 0.07+*(+k-3+)=+1
Reorder the terms in parentheses
+ 0.028-0.007k+( + 0.07k-0.21)=1
Remove unnecessary parentheses
+ 0.028-0.007k + 0.07k-0.21=+1
We move all terms containing k to the left and all other terms to the right.
-0.007k + 0.07k=+1-0.028 + 0.21
We simplify left and right side of the equation.
+ 0.063k=+1.182
We divide both sides of the equation by 0.063 to get k.
k=18.761904761905
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