If (6, k) is a solution of the equation 3x+y=22 then the value of k is:
A
-4
B
4
C
3
D
-3
Text Solution
AI Generated Solution
The correct Answer is:
To find the value of \( k \) in the equation \( 3x + y = 22 \) given that the point \( (6, k) \) is a solution, we can follow these steps:
### Step 1: Substitute the values of \( x \) and \( y \)
We know that the point \( (6, k) \) means \( x = 6 \) and \( y = k \). We will substitute these values into the equation.
\[
3(6) + k = 22
\]
### Step 2: Calculate \( 3(6) \)
Now, we calculate \( 3(6) \):
\[
3(6) = 18
\]
### Step 3: Rewrite the equation
Now we can rewrite the equation with the calculated value:
\[
18 + k = 22
\]
### Step 4: Solve for \( k \)
To isolate \( k \), we subtract 18 from both sides of the equation:
\[
k = 22 - 18
\]
### Step 5: Calculate \( k \)
Now we perform the subtraction:
\[
k = 4
\]
### Final Answer
Thus, the value of \( k \) is:
\[
\boxed{4}
\]
---