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jok3333 [9.3K]
3 years ago
15

last month Stephanie spent $57 on 4 allergy shots and 1 office visit .This month she spent $9 after 1 office visit and a refund

for 2 allergy shots from her insurance company . How much does an office visit cost an allergy shot?
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
6 0

Visit $25 allergy shot $8

4a + 1v =57

-2a +1v= 9

I will multiply the second by -1 to cancel v variable (elimination method)

4a +1v =57

2a -1v = - 9

add both

6a. = 48

a= 8

4a= 32

32 + v = 57

v= 25

32+25 = 57

-16 +25=9

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