2 years ago

Solve the system of equations x + y = 0 and x + 9y= -48 by combing the eqatuons

Mathematics

1 answer:

lidiya [134]2 years ago

7 0

Answer:

x = 6

y = -6

Step-by-step explanation:

x + y = 0 (Multiply by -1)

x + 9y= -48

-x - y = 0

x + 9y= -48

8y = -48

y = -6

x + y = 0

x - 6 = 0

x = 6

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