Question

solve for x and y, x+y=5, x-y=10​

Answer 1

Answer:

x+ y = 5

x= 5 - y

X-y=10

5- y -y =10

-2y= 5

y= - 2.5

X= 7.5

Answer 2

Answer:

x+y = 5

x-y = 10

2x = 15

x = 15/2

x = 7.5

Putting the value of x in equation (i)

x+y = 5

7.5+y = 5

y = 5-7.5

y = -2.5

x = 7.5

y = -2.5

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