Show that each of the following values for the given variable is a solution to the given equation. Show the calculations that lead to your answer.
(a) 3x + 4 = 7
for x = 1

                                                      Part a)

As the L.H.S = R.H.S, so is the solution to the equation

Step-by-step explanation:

Given the equation

solving the equation for x = 1

substituting the value of x = 1 in the equation

As the L.H.S = R.H.S, so is the solution to the equation

                                                     Part b)

As the L.H.S = R.H.S, so is the solution to the equation

Step-by-step explanation:

Given the equation

solving the equation for x = 15

substituting the value of x = 15 in the equation

As the L.H.S = R.H.S, so is the solution to the equation

                                                   Part c)

As the L.H.S = R.H.S, so x = -3 in the equation is the solution to the equation

Step-by-step explanation:

Given the equation

solving the equation for x = -3

substituting the value of x = -3 in the equation

As the L.H.S = R.H.S, so x = -3 in the equation is the solution to the equation

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce