Question

Fill in the blank:
5
If x+y=30 and x-y=20 then x=​

Answer 1

Answer:

x=25

Step-by-step explanation:

x+y=30

X-Y=20

Adding both equation we get,

2x=50

x=25

Answer 2

Answer:

25

Step-by-step explanation:

x-y =20

or,x=20+y

putting value of x in first equation

x+y =30

20+y +y=30

2y=30-20

y=10/2

y=5

and

x=20+y

so, x=20+5

x=25