Answer:
No
Step-by-step explanation:
Given
[tex]2x + 4y = -2[/tex]
[tex]-4x + y = -14[/tex]
Required
Is (4,-2) a possible solution?
In (4,-2)
[tex]x = 4[/tex]
[tex]y = -2[/tex]
Substitute [tex]x = 4[/tex] and [tex]y = -2[/tex] in: [tex]2x + 4y = -2[/tex]
[tex]2(4) + 4(-2) = -2[/tex]
Open all brackets
[tex]2*4 - 4*2 = -2[/tex]
[tex]8 - 8 = -2[/tex]
[tex]0 \ne -2[/tex]
The above expression shows that (4,-2) is not a solution and there is no need to check for the second equation.
