Question

16x - 4y = 3 y = 4x + 7

Answer 1

y in equation 1

$\begin{gathered} 16x-4\mleft(4x+7\mright)=3 \\ 16x-16x-28=3 \\ -28=3 \end{gathered}$

-28=3 is false, therefore the system of equations has no solution