Question

x=2
3. If x + 2y = 1 and x - y = 2, find the value of x + y.​

Answer 1

Step-by-step explanation:

X+2y=1 eq. (1)

X+y=O eq (2)

X=2

2x & 2x cut

x+2y=1

x+1y=1

------------

1Y=2

y=I/2

y=2

Put the eq. 1

x+2x2=I

X+4=1

x = 4-I

X=3

(x,y) (3,2)

Answer 2

Answer:

3

x+2y=1

x-y=2

3y=3

y=1

x+y=2+1=3