Question

A system of equations is shown below:

n = 3m + 7
n - 2m = 1
What is the solution, in the form (m, n), to the system of equations?
O (3,7)
(1,8)
O(-3,-2)
O(-6, -11)

Answer 1

D!!!!

n=−11

m=−6

I used a graph to show you what the lines and when they would intersect would look like!!

Answer 2

Last option is the correct choice.

Explanation:

Substitute the first equation in the second equation and then solve for the variable m.

`\begin{bmatrix}3m+7-2m=1\end{bmatrix}`

`m=-6`

`n=3\left(-6\right)+7\\\\n=-11`

Best Regards!