2•x, 2•-5.
Than you would combine like terms
Answer:
1.14 liters
Step-by-step explanation:
We have 8% glycerin solution and we need to make it 16% glycerin solution [more concentration].
When we add "x" liters, we add glycerin as well as changes the total. in 12 Liters, there is 12 * 0.08 = 0.96Liters of glycerin. How much we need to add to this??
Note, 16% = 0.16
We can write a Ratio as shown below, cross multiply and solve for x:

We need to add around 1.14 liters
Answer:
x=27
Step-by-step explanation:
Triangle angle =180 degrees
180=2x+5+x+17+3x-4
180=6x+18
(180-18)/6=x
x=27
2880 cubic inches is the answer.
Answer:
4 
Step-by-step explanation:
The additive inverse is the value that must be added to the number to give zero.
- 4
+ 4
= 0
↑ additive inverse