3x-4 = -10
3x-4 +4 = -10 +4
3x = -6
then you can divide it :
x = -6 : 3
x= -2
If you would like to know what is the amount of money Yul should leave for the tip, you can calculate this using the following steps:
20% of $14.50 = 20% * 14.50 = 20/100 * 14.50 = $2.9
Result: Yul should leave $2.9 for the tip.
We cannot say with certainty how many times Rodney will get orange.
Assuming that the packs are constantly replaced:
Orange constitutes 2/6, or 1/3, of a pack.
2/6 x 30 = 60/6 = 10 orange juice packs.