Multiply by 0.4 on both sides to cancel the original 0.4 and change the 10
15x-6+x-3=39
16x-9=39
16x=39+9
16x=48
x=48/16
x=3
Answer:
3 packages
Step-by-step explanation:
each package has 3
if she buys 1, she has 3 party favors
buys 2, has 6
buys 3, has 9
she can't buy 2 packages, then one friend doesn't get a party favor. so she will have to buy 3 packages, use 7, leave 2 extra.
please give thanks :)
