Is there anyone can help me with these problems?

Mathematics

1 answer:

OLga [1]3 years ago

5 0

Answer:

Solution is (-3, 0). Lincoln.

Step-by-step explanation:

a. Lincoln's method: His an error was on the third line.

When distributing the 5 over the parentheses he did not multiply the -y by the 5.

He wrote -y while it should be -5y.

Claire's method: Mistake on line 3. She incorrectly distributed the negative over ( -3 - x) . Correct is 3 + x not 3 - x.

b. The correct solution is (-3, 0) which Lincoln got, just by luck, because if we substitute these values into the 2 equations they fit:

5(-3) - 0 = -15.

-3 + 0 = -3.

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