Question

Problem: 2 - $(7 – 2y) = -3

Step 1: -3(7 2y) = -3
Step 2: -21 + 6y=-3
Step 3: by = 18
Step 4: y = 3
Determine which number step the mistake is Made and describe the error

Answer 1

Step 3. Instead of subtracting -21 and -3, they should’ve added because they are like terms. A negative plus a negative is still a negative.