solution: x+5= -x-5
x= -5
1. Subtract 5 from both sides
2. Simplify
3. Add x from both sides
4. Simplify
5. Divide both sides by two
When you write a function in the form 
, y is the dependent variable, and x is the independent variable.
So, if b is the independent variable, it means that we have to solve the expression for r.
To do so, we perform the following steps: start with
Add 12 to both sides
Divide both sides by 4:
So, we wrote the expression in the form 
, which means that r is the dependent variable and b is the independent variable, as requested.
The answer is 63 units, just add them up.
Step-by-step explanation:
4(x-3) -r+2x =5(3x-7) - 9x
4x−12r+2x=15x−35−9
6x - 12 = r - 12 = r + 6x -35 -12
r=35-12
r =23
The process of combustion involves reacting fuel with a
given oxidant (most of the time oxygen from the atmosphere). Complete
combustion is a type of combustion that produces carbon dioxide and water. An
example of this is 2C2H6 + 7O2 = 4CO2 + 6H2O.
