Mathematics, 17.07.2020 20:01 aileenf598

Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below. In which step did Ernesto make the first error?x – y = 7 3x – 2y = 8
Step 1: x = y + 7
Step 2: 3(y + 7) – 2y = 8
Step 3: 3y + 7 – 2y = 8
Step 4: y + 7 = 8
Step 5: y = 1

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Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below. In which step did Ernesto make the first error?x – y = 7 3x – 2y = 8Step 1: x = y + 7Step 2: 3(y + 7) – 2y = 8Step 3: 3y + 7 – 2y = 8Step 4: y + 7 = 8Step 5: y = 1

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Another question on Mathematics

Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below. In which step did Ernesto make the first error?x – y = 7 3x – 2y = 8
Step 1: x = y + 7
Step 2: 3(y + 7) – 2y = 8
Step 3: 3y + 7 – 2y = 8
Step 4: y + 7 = 8
Step 5: y = 1