Question

Find The value of x+2y if x and y are the solutions of the equation x+y = 1 and x-y = 3
​

Answer 1

Answer= x=5,y=2

explain= Solution

verified

Verified by Toppr

x+y=7⋯(1)

x−y=3

x=y+3

Put it in (1)

y+3+y=7

2y+3=7

2y=7−3

2y=4

y=

2

4

=2

Put y=2 in x+y=7 we get

x=7−y=7−2=5

∴x=5,y=2