SOLUTION: how do i solve this equation using either substitution or elimination y=x+4 y=3x

SOLUTION: how do i solve this equation using either substitution or elimination y=x+4 y=3x

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Question 749487: how do i solve this equation using either substitution or elimination
y=x+4
y=3x

Answer by timvanswearingen(106) (Show Source): You can put this solution on YOUR website!
Substitution:
Since y=3x, let's substitute 3x in for y in the first equation:

Subtract x from both sides:

Divide both sides by 2:

Now plug in your x value into either equation:

Now you know both x and y, give the answer in an ordered pair:
(2,6)

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