Question

Selve each system of equations using substitution method.
8p+7q=43
2p-7=-q​

Answer 1

Step-by-step explanation:

8p+7q=43.... equation 1

2p-7= -q => q= 7-2p

put value of q in equation 1

8p+7(7-2p)= 43

8p+49-14p=43

-6p= 43-49

-6p= -6

p = -6/-6

p= 1

q= 7-2p

q= 7-2(1)

q= 7-2

q= 5