Answer:
x=3
Step-by-step explanation:
since they give you y this is a very simple problem
simply replace y with -3 and get
3x+(-3)=6
adding a negative number is the same as subtracting a positive number
3x-3=6
add 3 on both sides
3x=9
divide by 3 on both sides
x=3
Answer:
The product is positive, thus it is 
Step-by-step explanation:
The full question in proper notation is:
"Find the product. If the result is negative, enter "-". If the result is positive, enter "+".
"
We have to work with it using Order of operations know as well as PEMDAS, thus expression inside parenthesis go first and exponents.
On this expression we have to work with exponents

Thus we get

Lastly we can work with multiplication and remembering that the multiplication of two negative signs becomes positive.

So the final simplified expression is 
Answer:
y=3/4x-2
Step-by-step explanation:
X-ounces of an oil blend,
y - ounces of glycerin
x + y = 4 ⇒ y = 4 - x
1.5 x + y = 5.50
1.5 x + 4 - x = 5.50
0.5 x = 5.50 - 4
0.5 x = 1.50
x = 3
y = 4 - 3 = 1
There are 3 ounces of an oil blend and 1 ounce of glycerin.