In the below system, solve for y in the first equation. x + 3y = 6 2x – y = 10
So the equation is x+3y=6, and you want to solve for y? Just move everything that is not a y to the other side of the equals sign. Standard procedure.
y = (6 - x)/3
@xxmileyxxd This "so y=6-x/3, or y=-x+6/3 so your left with y=2-x or y=-x+2" Doesn't make sense. Can you explain further, please?
xxmileyxxd is incorrect. You would not get "y=2-x or y=-x+2" remember it's (6 - x) divided by 3. you cannot divide the 6 alone by 3. you need to divide the "x" as well. so it would be: \[y = 2 - \frac{ 1 }{ 3 }x \]
He's just solving for y, you move everything to one side to get your answer, than divide the 3 to the other side.
^ yes, which would yield the following: \(\large x + 3y = 6 \rightarrow y=\frac{6-x}{3}\) In slope intercept form that would be \(\large y=-\frac{1}{3}x+2\).
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