gdog678990 gdog678990

20-11-2019
Mathematics

contestada

If p+q=36 and p-q=20 then q=?

Respuesta :

Henryonuoha2018 Henryonuoha2018

20-11-2019

Answer:

Step-by-step explanation:

using substitution method.

p-q=20 so p=20+q Substitute into

P+q=36

Therefore 20+q+q =36

20+2q=36

2q=36-20

2q=16

q= 16/2

q=8

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