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Ill give you brianliest
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

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hoiattitude
Equation 2 starts off at 4m=4+4n not -4. so trace steps back to step 1 and look at the numbers again
abidemiokin

The student first mistake was where he introduced a negative sign to 32

System of equations

These consist of several equations with unknowns. Given the system of equations:

m = 8 + 2n

4m = 4 + 4n

Substitute equation 1 into 2

4(8 + 2n) = 4 + 4n

Expand

32 + 8n = 4 +4n

Collect the like terms

8n - 4n = 4 -32

4n = -28

n = -7

The student first mistake was where he introduced a negative sign to 32

Learn more on equations here; https://brainly.com/question/2972832

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