Question

Show whether the ordered pair is a solution of the given equation.(2, -1) 2x + 3y = 7

Answer 1

The ordered pair is NOT a solution.

Explanation:

We have the following equation:

`2x+3y=7`

The ordered pair (2, -1) is a solution of the equation if, substituting the values, the equation is true, just like this:

`\begin{gathered} 2\cdot2+3\cdot-1=7 \\ 4-3=7 \\ 1\\e7\rightarrow\text{ false} \end{gathered}`

Which means that it is not a solution of the equation