The work of a student to solve a set of equations is shown below:
equation 1: m=8+2n
e...
Mathematics, 28.01.2020 04:31 meccadm
The work of a student to solve a set of equations is shown below:
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?
Answers: 1
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