Given the function f(x) = 3x + 1, evaluate f(a + 1).
3a + 1
3a + 2
3a + 4

If my mental math is correct, the answer is 3a + 4.

Step-by-step explanation: You would substitute the x in 3x +1 with 3(a+1) +1. Then you would do distributive property by multiplying 3 times (a + 1) which would give you 3a + 3. After that you would add 3 + 1 and get 4. So, the answer is 3a + 4. Hopefully my answer is correct and helped you.

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3