3 years ago

What is the solution of 3x + y = 9 and 3x - 5y = 15?

Mathematics

1 answer:

Alborosie3 years ago

8 0

Step-by-step explanation:

3x + y = 9

3x − 5y = 15

Solve with elimination. Subtract the second equation from the first.

6y = -6

y = -1

Plug into either equation to find x.

3x + -1 = 9

3x = 10

x = 10/3

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