Cecilia simplified an expression. Her work is shown below.
Step 1
(6+2) - 1.5x (4.5+0.5)...
Mathematics, 30.03.2020 17:23, lisacarter0804
Cecilia simplified an expression. Her work is shown below.
Step 1
(6+2) - 1.5x (4.5+0.5)
91-1.5x (4.5-0.5)
7.75x(4.5-0.5)
7.75x9
69.75
Step 2
Step 3
Step 4
Where did Cecilia make her first mistake?
Answers: 1
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