Question

2. Solve the following systems of linear equations by using the method of elimination?
8x + 5y = 9
3x + 3y = 4
1x
3 Salye the following systems of equations by using the method of substitution?​

Answer 1

8x+5y=9..........(1)

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

(1)*3=> 24x+15y=27

(2)*8=> 24x+24y=32

(-) (-) (-)

-9y=-5

y=5/9

substitute y=5/9 in equation (1)

8x+5*5/9=9

8x+25/9=9

8x=9-25/9

8x=81-25÷9

8x=56/9

x=56/72

x=7/9