SOLUTION: What is y in 3(2y - 5) = 9?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: What is y in 3(2y - 5) = 9?       Log On


   

Question 1053569: What is y in 3(2y - 5) = 9?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+3%2A%28+2y+-+5+%29+=+9+
Divide both sides by +3+
+%283%2F3%29%2A%28+2y+-+5+%29+=+9%2F3+
+1%2A%28+2y+-+5+%29+=+3+
( you don't need to show the +1+ since
leaving it out changes nothing )
+2y+-+5+=+3+
Add +5+ to both sides
+2y+-+5+%2B+5+=+3+%2B+5+
+2y+=+8+
Divide both sides by +2+
+%282%2F2%29%2Ay+=+8%2F2+
+1%2Ay+=+4+
+y+=+4+
---------------------------
check the answer:
+3%2A%28+2y+-+5+%29+=+9+
+3%2A%28+2%2A4+-+5+%29+=+9+
+2%2A4+-+5+=+9%2F3+
+8+-+5+=+3+
+3+=+3+
OK