Question

2px+3y=7 and 2x+y=6 then the value of p

Answer 1

2px + 3y = 7àequation 1

   2x   + y   = 6à equation 2

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            2y   = 1 (Solving equ 1 & 2 )

             Y= 1/2

Put y=1/2 in equation 2

2x+y=6

2x+1/2=6

(4x+1)/2=6

4x+1=12

4x=11

X=11/4

Put X=11/4 and  Y=1/2 in equation 1

2px + 3y = 7

2p(11/4) + 3(1/2)=7

22p/4 + 3/2 = 7

Make denominator common , Take the highest value as denominator or do L.C.M and take the denominator

We get,

(22p+6)/4 = 7

Multiply denominator 4 to RHS 7

We get,

22p+6=28

22p=28-6

22p=22

P=22/22

Therefore ,

P=1