3z-4=6z-17
-3z-4=-17 (subtracted the 6z from both sides)
-3z=-13 (added the 4 to both sides)
z=

(divided both sides by -3z)
z=
Answer:
34:05 more
Step-by-step explanation:
easy just add the toghter and you get 75
9 1/3 is the same as 28/3. 2/3 can go into 28/3 14 times (14*2=28), so she needs 14 plastic bags.
Answer:
-2
Step-by-step explanation:
-7 + 5 = -2
If you have negatives and then add, the negative number will decrease.
if the question was -7 - 5, the answer would be -12. This is because when you subtract a number from a negative, the negative number becomes bigger.