36859310 36859310 13-10-2022 Mathematics contestada Betsie tried to solve an equation step by step. \qquad\begin{aligned} 3(a+7)&=-33\\\\ \\ a+7&=-11&\green{\text{Step } 1}\\\\ \\ a&=-4&\blue{\text{Step } 2}\\\\ \end{aligned} 3(a+7) a+7 a =−33 =−11 =−4 Step 1 Step 2 Find Betsie's mistake.
