Question

pair of linear equation 3 X + 2 Y is equal to 11 and 5 x minus 2 Y is equal to 13​

Answer 1

Answer:

3x+2y=11

2y=11-3x..........1

5x+2y=13

2y=13-5x........2

.....1+....2

11-3x=13-5x

-3x+5x=13-11

X=1

Answer 2

3x+2y=11..............(¡)

5x-2y=13..............(ii)

2y=11-3x (substitution method)

Y =11-3x/2............. (iii)

Put,value of y In Equation (ii) we get,

5x - 2(11-3x/2)=13

10x-22+6x=26

16x=48

X=48/16

X=3

Put value of x in equation (iii) we get,

Y=11-3(3)/2

Y=11-9/2

Y=2/2

Y=1

Verification...

Put value of x and y in equation (i)

3(3)+2(1)=11

9+2=11

11=11