25middletonca 25middletonca

11-11-2020
Mathematics

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X+y=8
Y=3x

Solve with substitution

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camdenjungquist camdenjungquist

11-11-2020

Answer:

x=2, y = 6

Step-by-step explanation:

We see that y = 3x so we can substitute the y in x + y = 8.

x + 3x = 8.

Combine like numbers:

4x = 8.

Divide both sides by 4.

x = 2

Now plug in x to find y

2 + y = 8

Subtract 2 from both sides.

y = 6

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