Question

3x+ 4 y = 11. 2 x + 3 y = 8 find x and y

Answer 1

Answer : By using substitution method

2x = 8 - 3y

x = 8 -3y /2

3*(8- 3y) /2 +4y = 11

24-9y /2 + 4y =11

24-9y +4y=11*2

24-5y =22

-5y =22-24

-5y = -2

y = 2/5

2x +3*2/5 = 8

2x + 6/5 = 8

2x = 8/1 - 6/5

2x = 40-6 /5

2x = 36/ 5

x = 36 / 5*2

x= 18/5