Question

solve the following pair of linear equation 4x-5y-20=0 and 3x+5y-15=0

Answer 1

4x-5y-20=0 -----(1)
3x+5y-15=0-------(2)

From (1) eq

4x-5y-20=0
4x-5y=20
4x=20+5y
X=20+5y/4
X=5+5y

Putt the value of x in eq (2)
So
3x+5y-15=0
3(5+5y) +5y-15=0
15+15y+5y=15
15+20y=15
20y=15-15
20y=0
Y=0/20
Y=0

Putting the value y in eq(1)
So
4x-5y-20=0
4x-5*0=20
4x-0=20
4x=20
X=20/4
X=5





I hope this will help u
By DEVANSH