It has to be b because none of the others are correct.
Plug the x value into the x value for your questions.
8.) -57
9.) -2
30 + 2w = 2 • (w - 15)
Equation at the end of step 1 :
Step 2 :
Equations which are never true :
Solve : 2 = 0
This equation has no solution.
A a non-zero constant never equals zero.
Solving a Single Variable Equation
Solve : w-15 = 0
Add 15 to both sides of the equation :
w = 15
the answer is 1,576,800,000
