To solve the system of equations:
- x + 2y = 14
- x + 3y = 9
We can use either the substitution method or the elimination method. Here, I will use the elimination method for clarity.
First, let’s express both equations:
- Equation 1: x + 2y = 14
- Equation 2: x + 3y = 9
Next, we’ll eliminate x by subtracting the first equation from the second equation:
x + 3y - (x + 2y) = 9 - 14
This simplifies to:
y = -5
Now that we have the value of y, we can substitute it back into either of the original equations to find x. Let’s use Equation 1:
x + 2(-5) = 14
This simplifies to:
x - 10 = 14
Now, solving for x:
x = 14 + 10
x = 24
Thus, the solution to the system of equations is:
x = 24, y = -5
In conclusion, the pair of values (24, -5) satisfies both original equations, which confirms our solution is correct.