Question

2x +3y=12
x-y =1
by Elimination
​

Answer 1

Answer:

x = 3 and y = 2

Step-by-step explanation:

2x + 3y = 12 ------------- e.q. 1

 x  -   y =   1 -------------- e.q. 2

On multiplying by 3 in e.q. 2 and 1 in e.q. 1

2x + 3y = 12 ------------- e.q. 3

3x - 3y =  3 ------------- e.q. 4

On adding e.q. 3 and e.q. 4

5x = 15

x = 3

Putting the value of x = 3 in e.q. 2

3 - y = 1

- y = - 2

y = 2