How many solutions does the system have? You can use the interactive graph below to find the answer.
{
21
x
+
6
y
=
42
7
x
+
2
y
=
14

⎩
⎪
⎪
⎨
⎪
⎪
⎧
​

21x+6y=42
7x+2y=14
​

Choose 1
Choose 1

(Choice A)
A
Exactly one solution

(Choice B)
B
No solutions

(Choice C)
C
Infinitely many solutions