### Home > CC2MN > Chapter 7 > Lesson 7.2.5 > Problem 7-104

7-104.

Solve the following equations using any method. Show your work and check your solution.

Subtract

from both sides to move the variable onto one side of the equation. Isolate the variable by subtracting

from both sides. Finally, divide both sides by

. Check your answer.

Follow the method presented in part (a).

Substitute

back into the equation. Simplify.

If both sides of the equation are equal, your answer is correct.

Follow the method presented in part (a). Check your answer using the method presented in part (b).