Question

find the value of x from the following
x+y=10
x-y=12
​

Answer 1

x+y=10 (1)

x-y=12

x=12+y. (2)

Apply (2) in (1)

so,

12+y+y=10

2y=10-12

y =-2/2

y=-1

so

x =12-1

=11

Answer 2

Answer:

x=11

Step-by-step explanation:

x+y=10---------(1)

x-y=12----------(2)

By (2)+(1),

2x=22

x=11