Question

Write two solutions for the following equation :

3x + 4y = 7

Answer 1

Given that     3x + 4y = 7

Substituting `x = 0 ` in this equation, we get

     `3 xx 0 + 4y = 7`

⇒  ` y = 7/4`

 So.  `(0. 7/4)` is a solution of the given equation substituting  `x = 1 ,` in given equation. We get 

⇒  `3 xx 1 + 4y = 7`

⇒ 4y = 7 - 3 

⇒ = 4

⇒ y = 1

So, (1.1) is a solution of the given equation

 ∴ `(0. 7/4)` and (1.1) are the solutions for the given equation.