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Mathematics, 04.03.2021 21:50 cranfordjacori

5. Below a student is solving a system of equations using substitution. Where did the student make their first mistake? What did they do wrong?
y = x-4
- 2x + y = 18
Line 1: - 2x + (x-4) = 18
Line 2: - x - 4 = 18
Line 3: x= 22
Line 4: y = 22 - 4
Line 5: y = 18

5. Below a student is solving a system of equations using substitution. Where did the student make

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