Question

Solve for p and q simultaneously if 2q+p=5

Answer 1

Step-by-step explanation:

6q+7p=3 x2

2q+p=5 x6

12q+14p=6......(1)

12q+6p=30.....(2)

subtracting eq(2) from eq( 1 )

0+8p =-24

p=-3(put the value of p=-3 in eq (1)

we get

q=4

Answer 2

Answer:

Step-by-step explanation:

2q+p=5 [ 1]

2q=5-p [2]

5-p+p=5

5-2p=5

2p=0

∴p=0

2q=5-p

2q=5-0

2q=5

∴q=5/2