Answer:
3(n - 7) = 18
Step-by-step explanation:
three times the difference of a number and 7 is 18
three times the difference of a number and 7 = 18
three times (n - 7) = 18
3(n - 7) = 18
3z-4=6z-17
-3z-4=-17 (subtracted the 6z from both sides)
-3z=-13 (added the 4 to both sides)
z=
![\frac{-13}{-3z}](https://tex.z-dn.net/?f=%20%5Cfrac%7B-13%7D%7B-3z%7D%20)
(divided both sides by -3z)
z=
Answer:
F. 10 30. please brainliest
Let x=large boxes and y=small boxes.
x+y=110
60x+35y=5100
____________
You need to cancel out one of the variables to solve for one. Let's cancel out y.
-35(x+y=110)
-35x-35y=-3850
60x+35y=5100
____________
Add the two equations.
25x=1250
x=50
_____________
Plug in 50 for x into one of the equations to solve for y.
50+y=110
y=60
_____________
50 large boxes
60 small boxes
Answer:
4,2
Step-by-step explanation: