Worksheet Worksheet 1
1.
Determine the value of the expression \(3p + 5q\) when \(p = -2\) and \(q = -1\text{.}\) Show the calculation and write your result as an if-then statement.
2.
Substitute \(b = 3a - 5\) into the expression \(2b + 3\) and simplify the result. Use a complete presentation.
3.
Check the presentation for errors. If you find one, circle it and describe the mistake in words.
\begin{equation*}
\begin{aligned}
-x + 5 \amp = -y + 3 + 5 \amp \eqnspacer \amp \text{Substitute $x = y + 3$} \\
\amp = -y + 8 \amp \amp \text{Arithmetic}
\end{aligned}
\end{equation*}