\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.
Choose 1
Choose 1

(Choice A)
A
\green{\text{Step }1}Step 1start color #28ae7b, start text, S, t, e, p, space, end text, 1, end color #28ae7b

(Choice B)
B
\blue{\text{Step }2}Step 2start color #6495ed, start text, S, t, e, p, space, end text, 2, end color #6495ed

(Choice C)
C
Betsie did not make a mistake.