Question

In the equation x + 2y = 4, if x = - 2 then find the value of y.​

Answer 1

Answer:

Given equations are y=x−2 and x=2y+4

Substituting the value of y from first equation in second equation, we get

x=2×(x−2)+4

⇒x=2x−4+4

⇒x=0

When x=0, y=x−2=0−2=−2

Answer 2

Step-by-step explanation:

Given equations are y=x−2 and x=2y+4

Substituting the value of y from first equation in second equation, we get

x=2×(x−2)+4

⇒x=2x−4+4⇒x=0

When x=0, y=x−2=0−2=−2