Question

Solve the 8x+3y=9 3x+2y =4 by elimination metho

Answer 1

8x+3y =9...(1)
3x+2y=4 .....(2)
(1)x2
(2)x 3
16x+6y=18
9x+6y=12
7x=6
x=6/7
3(6/7)+2y=4
18/7 +2y=4
2y=4-18/7
2y=10/7
y=5/7

Answer 2

8x + 3y = 9 ---( 1 )

3x + 2y = 4 ---( 2)

On subtracting Angle 2 from Angle 1

8x + 3y - 3x - 2y = 9 - 4

5x - y = 5