Question

Simultaneous equations
5x-6y=16
3y+2y=4

Answer 1

`\left \{ {{x=4(4)/(25)} \atop {y=(4)/(5)}} \right.`

Explanation:

`\left \{ {{5x-6y=16} (1)\atop {5y=4} (2)} \right.`

`\therefore y=(4)/(5)`

Substitute into equation (1)

`5x-6*(4)/(5)=16`

`5x-(24)/(5)=16`

`25x-24=80\\25x=104\\x=(104)/(25)\\=4(4)/(25)`