nevaehgrimball nevaehgrimball
  • 23-10-2020
  • Mathematics
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Solve the following system of equations using substitution, show all steps. 2x-4y=20 / x= 4

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bradley2005scopb88it
bradley2005scopb88it bradley2005scopb88it
  • 23-10-2020

Answer:

(4, -3)

Step-by-step explanation:

Since we know that X = 4, when can set X = 4 in the other equation in order to solve for Y

2x - 4y = 20

2(4) - 4y = 20

8 - 4y = 20

-8           -8

-4y = 12

-4y/-4 = 12/-4

y = -3

Since we already know X = 4, the intersection point or solution to the System is (4, -3)

Hope this helps!

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