Question

*Which of the given pairs of numbers is not a solution of equation x + y = 7.*

1️⃣ (1,6)
2️⃣ (6,1)
3️⃣ (0,7)
4️⃣ (3,5)​

Answer 1

Answer:

4️⃣ (3,5)

is not a solution of equation x + y = 7.*

Answer 2

Answer:

We have to check whether these pairs satisfy equation 2x+y=7 or not.

So, we will put these pairs one by one.

A) (1,5)⇒2×1+5=7 so, it satisfies.

B) (3,1)⇒2×3+1=7 so, it satisfies.

C) (1,3)⇒2×1+3=5 so, it does not satisfies.

D) (1,5)⇒2×0+7=7 so, it satisfies.

Option C is the correct option.