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3 years ago

The work of a student to solve a set of equations is shown:

Mathematics

1 answer:

seraphim [82]3 years ago

5 0

Answer:

In step 3

4m = 4 + 4n

-4m = -32 -8n. (step 2)

If you add -4m, 4m you end up with

-4m+4m=-32 -8n + 4n +4

In step 3. the 4 was not added

continuing to solve 4n=-28, n=-7

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Review attached graph and explanation

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