Question

solve the following simultaneous equations by elimination method: p-2q=1 , -3p-q=-5​. please answer

Answer 1

Answer:

p= –11/5 and q= –4/5

Step-by-step explanation:

p-2q=1 (i)

3p-q=-5 (ii)

Multiplying (i) by 1 and (ii) by 2, and subtracting both we get;

p– 2q= 1

–6p–(+)2q= -(+)10

__________

–5p=11

so, p= –11/5

now,

putting value of p in (i)

–11/5–2q= 1

=> -2q= 1+11/5

=> -2q= (5+11)/5

=> q= 16/(10×-2)

=> q= –8/10

=> q= –4/5

So. p= –11/5

q= –4/5

Hope it'll help you.....

Answer 2

Answer:

you are doing good in brainy

I'm saaikamal

please mark as brainliast and follow me