1. n-3n=14-4n
n-3n+4n=14
2n=14
n=7
2. -8n+4(1+5n)=-6n-14
-8n+4+20n=-6n-14
12n+6n=-14-4
18n=-18
n=-1
3. -10+x+4-5=7x-5
x-7x=-5+10-4+5
-6x=6
x=-1
4. -6n-20=-2n+4(1-3n)
-6n-20=-2n+4-12n
-6n+2n+12n=4+20
8n=24
n=3
<span><span>A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 4 milliliters of compound B. If a chemist uses 255 milliliters of compound A, how many milliliters of the drug will be made?
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4:5 is the same as 4x:5x where 4x is compound A and 5x is compound B.
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Solve for "x":
If amount of compound A is 4x = 255
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no athletes go to the Olympics?
The answer is: 153.93 inches
7+3=10
60/10=6
6x7=42
6x3=18
there is 18 trucks in the parking lot