Answer:

Step-by-step explanation:
we have

Eliminate the parenthesis

Group terms that contain the same variable

Combine like terms

Set it up as a direct variation: y/x=k, where k is the constant of variation. (20/3)/30=k gives us a k value of 8/9. The function would be y=8/9x
Answer: 1. x= -12 2. x= 12
Step-by-step explanation:
1. 5(+3)=−45
5x+15−15=−45−15
5x= -60
5x/5 = -60/5
x = -60/5
x= -12
2. 1x/2−4=2
x/2 -4=22−4+4=2+4
/2=6
2⋅2=2⋅6
x=2⋅6
x= 12
Step-by-step explanation:
When dividing both sides of an equality by a negative number, the sign should be changed:
25 < -5x
-5 > x
x < -5
First, we are going to write it like this:

Then, we are going to do something like factoring, but it's not factoring. An example would be:

If we apply it, we would be left with:

We cancel the common factors, and we are left with:

That's our final answer.
Let me know if you need any more help!
Thanks!
-TetraFish