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stepladder [879]
2 years ago
10

Ernesto tried to determine the solution for the system of equations using substitution. His work is shown below.

Mathematics
1 answer:
zimovet [89]2 years ago
5 0

Answer:

Step 3

Step-by-step explanation:

Ernesto was doing well until he got to Step 3.

Its a little mistake but that chabges up the entire problem.

Let me explain-

In Step 2: 3(y+7)-2y is showing that you must distribute the 3 to the y and the 7 however Ernesto only did that for the y.

That would be the answer, hopw this helps.

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