2+3x+4 input x=3 and output y=6
To evaluate the expression 2 + 3x + 4 with x = 3, you need to substitute x with 3 and calculate the result.
Here's how you can do it step-by-step:
1. Replace x with 3 in the expression:
2 + 3(3) + 4
2. Perform the multiplication first:
2 + 9 + 4
3. Add the numbers together:
15
Therefore, when x = 3, the value of the expression 2 + 3x + 4 is 15, not 6.