Equation 1: m = 8 + 2n Equation 2: 4m = 4 + 4n Step 1: −4(m) = −4(8 + 2n) 4m = 4 + 4n Step 2: −4m = −32 − 8n 4m = 4 + 4n Step 3: −4m + 4m = −32 − 8n + 4n Step 4: 0 = −32 − 4n Step 5: n = − 8 In which step did the student first make an error?Equation 1: m = 8 + 2n Equation 2: 4m = 4 + 4n Step 1: −4(m) = −4(8 + 2n) 4m = 4 + 4n Step 2: −4m = −32 − 8n 4m = 4 + 4n Step 3: −4m + 4m = −32 − 8n + 4n Step 4: 0 = −32 − 4n Step 5: n = − 8 In which step did the student first make an error? plz help

• : The error can be found in step 3. The student forgot to add four which caused him to mess up on the rest of the steps.
  
• varshamittal029:

  In step 3 the student first made an error to add a term 4.

  What is a linear equation of two variables?

  Linear equation of two variables is an equation where the highest degree is 1 and the number of variables is 2.

  for example: 2x+2y=9

  Here, the given two equations are

  Equation 1: m = 8 + 2n

  Equation 2: 4m = 4 + 4n

  To solve these equation multiply -4 on both sides in equation 1

  Step 1:

  Equation -1*4 : −4(m) = −4(8 + 2n)

  Equation -2:  4m = 4 + 4n

  Step 2:

  Equation -1*4 : −4m = −32 − 8n

  Equation -2: 4m = 4 + 4n

  Then add these two equations to eleminate the m terms.

  Step 3:

  Equation -1*4 + Equation -2 : −4m + 4m = −32 − 8n +4+ 4n

  In the question term 4 is missing to add in right hand side in step 3

  Step-4: 0=-4n-28

  taking variable term on one side and constant term on one side and then dividing the coefficient of the variable on both sides.

  Step-5: n=-7

  Therefore in step 3 the student first made an error to add a term 4.

  Learn more about the linear equation of two variables

  here: https://brainly.com/question/13544663

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