1 + 5x + 3y = 9 2x 3y = 12 X = (x, y) - 4

2 x + 3y = 4, 4x + 6y = 12 .

3 x + 5y = 12, 5x + 3y = 4 .

2x+3y=12;x-y=1

3 x + 2y = 12 , 5x - 2y = 4 .

Complete the following activity to solve simultaneous equations : 4x+ 3y = 18 " "...(1) 5x - 3y = 9 " " ...(2) Adding equations (1) and (2) , +{:(4x+3y=18" ...(1)"),(5x-3y=9" ...(2)"),(bar(squarex" "=square)):} :. X = (square)/(square ) " " :. X = square Substituting x = 3 in equation (1) , 4 xx square + 3y = 18 " " :. 3y = 18 - square " " :. 3y = square :. y = 2 (x,y ) = (square, square ) is the solution

(3) x+2y=-1;2x-3y=12

If 2 x + 3y = 12 and 3 x - 2y = 5 then

8x+5y=9 3x+2y=4

2x+3y=5 4x-5y=6