4 years ago

I really need help. Solving Systems with Substitution y=2x x+y=(-9)

Mathematics

1 answer:

Viktor [21]4 years ago

6 0

Answer:

Step-by-step explanation:

If you let y=2x, you can plug it into the other equation.

x+2x=-9

Then solve that equation.

3x=-9

x=-3

Then use y=2x to find y.

y=2(-3)=-6

y=-6

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