ANSWER:
not a solution
STEP-BY-STEP EXPLANATION:
We have the following system of equations:
[tex]\begin{gathered} 2x+5y=-18 \\ 6x-4y=15 \end{gathered}[/tex]
We have the point (1, -4), which we can interpret like this:
x = 1
y = -4
We replace these values and if it meets the system of equations, if it is a solution and if not, it is not a solution.
Therefore:
[tex]\begin{gathered} 2\cdot1+5\cdot-4=-18 \\ 2-20=-18 \\ -18=-18 \\ \\ 6\cdot1-4\cdot-4=15 \\ 6+16=15 \\ 22=15 \end{gathered}[/tex]
The first equation does, but the second does not, which means that the point (1, -4) is not a solution of the system of equations
