Solve each of the following equations. This is part of a practice mock test I have for an exam so I have all the answers but they aren't lining up somewhere. I got a) right but b) and c) wrong
c)1/x+2 = 7 (giving answer rounded to 4 decimal places)
The Attempt at a Solution
The first was easy, the rest though :/
5x+7 = 7x-9
-2X = -2
1/x+2 = 7
x+2 = (7*1)
the answer they got was -1.8571...
Please help guys this basic stuff is killing me! I can do that advanced stuff no problem (this is for a degree in Engineering) but this basic stuff is a nightmare!!