Question

4p +3q = 14 and 3p + 4q= 23 by elimination method

Answer 1

Step-by-step explanation:

4p+3q= 14...(i)(×3)

3p+4q= 23...(ii)(×4)

now,

12p+ 9q = 42

12p+ 16q= 92

(-). (-). (-)

________________

-7q= -50

or,q=50/7

now,in (i) q=50/7,so

4p+50/7=14

or,4p= 14-50/7

or,4p= (98-59)/7

or,4p=39/7

or,p=39/28