Question

Evaluate the following expression when x = 5 and y = 2. 15x + 3y|

Answer 1

We will simply substitute the known values of x and y into the given expression

abd get our answer.

`\begin{gathered} \lvert5x+3y\rvert \\ \text{when x=5 and y=2} \end{gathered}`

The expression will become:

`\begin{gathered} =\lvert5(5)+3(2)\rvert \\ =\lvert25+6\rvert \\ =\lvert31\rvert \\ =31 \end{gathered}`

The answer is 31.