b) ( 7, 21)
Step-by-step explanation:
5(7)=2(21)-7
35=42-7
35=35
Answer:
exactly 9 cases of soda
Step-by-step explanation:
408 - 300 = 108
12 x 9 = 108
so he would spend exactly 408$
I hope I helped!!!
Answer:easy
Step-by-step explanation:just do it
Answer:
x = 150
Step-by-step explanation:
Answer:
(1,2)
Step-by-step explanation:
x+4y = 9
2x -4y= -6
Add the equations together
x+4y = 9
2x -4y= -6
-------------------
3x +0y = 3
3x=3
Divide by 3
3x/3 = 3/3
x=1
Now find y
x+4y = 9
1 +4y =9
Subtract 1 from each side
4y = 8
Divide by 4
4y/4 = 8/4
y =2