Answer:
B is correct i think
Step-by-step explanation:
X should be 7 after doing all the calculation.
The steps needed to solve the given equation is required.
Adding the opposite value of the constant to both sides.
Divide both sides by the coefficient of the variable.
The solution to the equation is
The given equation is
In order to solve this we first move constants to the side opposite of the variable.
This is done by adding the opposite value of the constant to both sides.
Here is the constant so we add to both sides.
Now, we divide both sides by the coefficient of the variable.
The solution to the equation is
perimeter = sum of all sides
27 = 9+7.8+x
x (third side) = 10.2
