Question

Solve for y: x + 3y > 9.

Answer 1

@uri

Answer 2

@Luigi0210

Answer 3

Solve for y means to isolate the y by using inverse operations.

Answer 4

Inverse operations:
multiplication <-> division
addition <->subtraction

Answer 5

x + 3y > 9
3y > 9.-x
\[y > \frac{9}{3}- \frac{x}{3} \rightarrow y > 3- \frac{x}{3} \]

Answer 6

ok so i got 3y>9-x what do i do now

Answer 7

Remember that the 3 is being multiplied by the y. You need to do the inverse operation to separate it.
What you do to one side, you must do to the other.

Answer 8

multiply by 3

Answer 9

\(3 \times y = 9 - x\)
Look at it in expanded form...

Answer 10

i got it is y>1/3x-3

Answer 11

Right idea, but you made a mistake, can you find it?

Answer 12

i put 1/3

Answer 13

You reversed the 9 and the negative x, which would be ok if you kept the negative sign with the x.

Answer 14

9-x = -x+9

Answer 15

ohhh i see i corrected it :) thanks