Solve for x:5 . C
The angle marked 130° is an exterior angle and is equal to the sum of the
remote interior angles marked x° and (x – 10)°:6 . A
Find the absolute values first, and then calculate:
7 . A
To add fractions, you need a common denominator. Here that would be
6 x. Multiply the top and bottom of the second fraction by 3 and you can
proceed: