Question

Solve the equation:3x--4Y=18 and 4XY=5

Answer 1

Answer:

Step-by-step explanation:

4xy=5

y=5/4x;-------(1)

put this in 1st given equation;

3x-4*(5/4x) = 18

3x-5/x = 18;

3x²-5=18x;

3x²-18x=5

x1= 18 +(√18*18-4*3*5)/2*3 = 5.7(approx)

x2= 18 - (√18*18-4*3*5)/2*3; =  0.3(approx)

put these values in eqn 1 you will get the values of y.