Question

Solve the following simultaneous equations graphically.
(1) 2x + 3y 12 ; x - y = 1​

Answer 1

Answer:

Ans : (x,y) = (3,2)

Step-by-step explanation:

2x+3y=12 (1)

x-y=1 (2)

Multiplying (2) by 3,

3x-3y=3 (3)

Adding (1) & (3)

5x = 15,

Therefore, x = 15/5 = 3

Substituting x=3 in (2),

3-y=1

y=3-1

y=2

Ans : (x,y) = (3,2)

Answer 2

Step-by-step explanation:

x-y =1

let take x and y same so it will be 2x

2x=1

x=1/2

2*1%2+3*1%2*12=19