2x+y=3
x+2y=6
To solve this problem, we'll follow these steps:
- Step 1: Express one equation in terms of a single variable.
- Step 2: Substitute into the other equation.
- Step 3: Evaluate and determine the solution type.
Now, let's work through each step:
Step 1: Solve the first equation for x:
2x+y=3⇒x=6−2y.
Step 2: Substitute x=6−2y into the second equation:
x+2y=6⇒(6−2y)+2y=6.
Step 3: Simplifying equation:
6−2y+2y=6⇒6=6.
This equation 6=6 is always true, indicating that both equations are dependent and represent the same line.
Therefore, the system has infinite solutions.