Answer:
x = 5
Step-by-step explanation:
First you multiply the parenthesis by 30 to get 170x - 1000 = 150x -900. After this you move the terms together to get 170x - 150x = -900 + 1000. Next you combine the like terms to get 20x = 100. Next you need to get x by itself so you divide both sides by 20 to get x = 5.