The work of a student to solve a set of equations is shown:


Equation 1: m = 8 + 2n

Equation 2: 6m = 4 + 4n



Step 1: −6(m) = −6(8 + 2n) [Equation 1 is multiplied by −6.]

6m = 4 + 4n [Equation 2]

Step 2: −6m = −48 − 12n [Equation 1 in Step 1 is simplified.]

6m = 4 + 4n [Equation 2]

Step 3: −6m + 6m = −48 − 12n + 4n [Equations in Step 2 are added.]

Step 4: 0 = −48 − 8n

Step 5: n = −6



In which step did the student first make an error?

Step 3

Step 5

Step 4

Step 2