Kassandrraa Kassandrraa
  • 13-03-2021
  • Mathematics
contestada

2p+5q = 9
3p-29 =4
solve this in elimination method: multiplication please

Respuesta :

Аноним Аноним
  • 13-03-2021

Answer:

Step-by-step explanation:

Given:

2p + 5q = 9

3p - 2q = 4  ( the problem is saying 29 but i'm guessing you meant 2q)

Since the 'q' terms already have opposite signs i'll make them the same to eliminate them

2(2p + 5q = 9)

1) 4p + 10q = 18

5(3p - 2q = 4)

2) 15p -10q =20

now add  1) + 2)

19p = 38

p = 2

now that we know p.. plug it into either equation and solve for q

I'll use the first equation

2(2) + 5q = 9

4 + 5q = 9

5q = 5

q = 1

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