Posted by jacob on Wednesday, September 25, 2013 at 11:14am.
Debbie finished her algebra test early so she decided to check each of her answers. After checking her answer to question #10, she realized she made a mistake in her solution. In which step does Debbie make her mistake?
Original Equation: 2 + 3y = 5(y  2)
Step One: 2 + 3y = 5y  10
Step Two: 2 = 2y  10
Step Three: 8 = 2y
Step Four: 4 = y ¨ y = 4
1
2
3
4

Algebra  Mary, Wednesday, September 25, 2013 at 11:31am
Step 2: because instead of adding the like terms he subtracted them

Algebra  Jai, Wednesday, September 25, 2013 at 11:31am
Step 1 & 2 are right. She made the first mistake in Step 3, it should be
2 + 10 = 2y
12 = 2y
And so the succeeding steps are wrong too. But the earliest was in step 3.
hope this helps :3