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4 years ago

Solve each system by adding or subtracting -2x-y=-5,3x+y=-1

Mathematics

1 answer:

VashaNatasha [74]4 years ago

4 0

Answer:

(-6,17)

Step-by-step explanation:

-2x-y=-5,

3x+y=-1

Add the two equations together to eliminate t

-2x-y=-5

3x+y=-1

-------------------

x = -6

Now that we know x, we can substitute it into one equation to find y

3x+y = 1

3(-6) +y = 1

-18 +y = -1

Add 18 to each side

-18+18 +y = -1+18

y = 17

(-6,17)

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