Question

Which of the following pair is a solution of the equation $2x-y=7$?

• A. $(5,1)$
• B. $(1,5)$
• C. $(0,2)$
• D. $(2,-3)$

Answer 1

The correct option is D $(2,-3)$

For this, we will put each given pair and check whether it satisfy $2x-y=7$ or not. If it satisfies, then it's a solution of equation.

$(5,1)\Rightarrow 2\times 5-1=9$

$(1,5)\Rightarrow 2\times 1-5=-3$

$(0,2)\Rightarrow 2\times 0-2=-2$

$(2,-3)\Rightarrow 2\times 2+3=7$ So, $(2,-3)$ is the required solution.