Question

(Two questions)What is the value of the expression:When x=1/2, x=3, and x=6.5

Answer 1

a. 2.5

b. 5

c. 8.5

Step-by-step explanation:

An algebraic expression for '5 less than the sum of x and 7' is:

`\begin{gathered} x+7-5 \\ =x+2 \end{gathered}`

When x=1/2

`\begin{gathered} x+2=(1)/(2)+2 \\ =2(1)/(2) \\ =2.5 \end{gathered}`

When x=3

`\begin{gathered} x+2=3+2 \\ =5 \end{gathered}`

When x=6.5

`\begin{gathered} x+2=6.5+2 \\ =8.5 \end{gathered}`