Worksheet Worksheet 3
1.
Solve the equation \(-9x + 3 = 66\) using a complete presentation.
2.
Solve the equation \(3x + 9 = -9\) using a complete presentation.
3.
Solve the equation \(-8x + 17 = -4x + 41\) using a complete presentation.
4.
Check the presentation for errors. If you find one, circle it and describe the mistake in words.
\begin{equation*}
\begin{aligned}
-9x + 16 \amp = 7x - 8 \\
-9x \amp = 7x - 24 \amp \eqnspacer \amp \text{Subtract $16$ from both sides} \\
-2x \amp = -24 \amp \amp \text{Subtract $7x$ from both sides} \\
x \amp = 12 \amp \amp \text{Divide both sides by $-2$}
\end{aligned}
\end{equation*}