Rushingo Rushingo

30-11-2019
Mathematics

contestada

3) 8p + 7q = 43
2 -7=-q
how can I solve this with substitution?

Respuesta :

Yang100 Yang100

30-11-2019

Answer:

p=1, q=5. (1, 5).

Step-by-step explanation:

8p+7q=43

2-7=-q

------------------

-q=-5

q=5

--------

8p+7(5)=43

8p+35=43

8p=43-35

8p=8

p=8/8=1

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