WILL MARK BRAINLIEST TO THE FIRST PERSON OR WHO IS RIGHT 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

Step 3

Step-by-step explanation:

Step 3 should be:

−6m + 6m = −48 − 12n + 4n + 4

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  Step 3

Step-by-step explanation:

When the equations are added in step 3, the result should be ...

  -6m +6m = -48 -12n +4 +4n

In the work shown, the (+4) was left out in Step 3.

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When the work is properly continued, it becomes ...

  Step 4:  0 = -44 -8n . . . . [step 3 is simplified]

  Step 5: n = -5.5 . . . . . . .  [step 4 is divided by -8 and 5.5 subtracted]

  Step 6: m = -3 . . . . . . . . . [n is substituted into Equation 1]

And the solution is (m, n) = (-3, -5.5).

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step-by-step explanation: