Answer:
A ) subtract the second equation from the first equation
Step-by-step explanation:
2x + 3y = 7
2x - 4y = -5
subtracting the second equation from the first equation we get,
7y = 12
y=12/7
This is the correct option
Answer:
I would say C
Step-by-step explanation:
Since two negatives make a positive
Answer:
$18.42
Step-by-step explanation:
6 folders-7.74
7 pens-6.93
5 packs of pencils- 3.75