brazil-enem 2024 Q171

brazil-enem · Other · enem__day2 Simultaneous equations
The number of solutions of the system $$\begin{cases} x + y = 5 \\ 2x + 2y = 10 \end{cases}$$ is:
(A) 0
(B) 1
(C) 2
(D) 3
(E) Infinite
The number of solutions of the system
$$\begin{cases} x + y = 5 \\ 2x + 2y = 10 \end{cases}$$
is:

\noindent(A) 0\\
(B) 1\\
(C) 2\\
(D) 3\\
(E) Infinite