Question

Use the tools to graph the solution to the equation 6z−27=27 on the number line below.

Answer 1

z = 9

Explanation:

To find the solution, undo what is done to z. You can start by adding 27 to both sides of the equation.

6z -27 +27 = 27 +27

6z = 54 . . . . . simplify

Now, you can divide by 6 to make the coefficient of z be 1.

6z/6 = 54/6

z = 9 . . . . . . . simplify

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The attachment shows a plot of this point on a number line.