Question

8 x + 5 Y =9 and 3x+2y=4 by using elimination method ​

Answer 1

Explanation:

8x+5y=9................[1]

3x+2y=4................[2]

multiplying both equations by 3 & 8 respectively

(8x+5y=9)×3

24x+15y=27.............[3]

(3x+2y=4)×8

24x+16y=24.............[4]

adding 3rd &4th equation

24x+15y=27

24x+16y=24

- - -

___________

00+1y=3

y=3.............(1)

place y=3 in equation 1

8x+5y=9

8x+5×3=9

8x+15=9

8x=15+9

8x=24

x=24÷8

x=3