Question

if 2p+q=11 and p+2q=13 , then p+q=

A. 6
B. 8
C. 9
D. 12

Answer 1

Step-by-step explanation:

q=11-2p

put it in another equation

p+2(11-2p)=13

p+22-4p=13

-3p=-9

p=3

so,

q=11-2p

q=11-6

q=5

hence,

p+q=3+5

so

p+q=8

hope it helps!!

Answer 2

Answer:

A. 8

Step-by-step explanation:

2p+q=11

p+2q=13

Add the given equation,so you get

3p+3q=24

take (3) common

3(p+q)=24

p+q=24/3

p+q= 8