livleluve76
22.02.2021 •
Mathematics
In order to solve the equation 9x==3(x+3y
) te
-3(x+3y) for y, a student simplifies the
equation as shown:
Step 1: 9x = -3x+-3
Step 2: 9x=-3x +-y
Step 3: 9x - 3x =-y
Step 4: 6x=-y
Step 5: y=-6x
Which statement describes the error the student made in simplifying the
equation?
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