SOLUTION: please help me i am stuck........... IF a-3b=9b-7a then the ratio of a to b is

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Question 936985: please help me i am stuck...........
IF a-3b=9b-7a then the ratio of a to b is
Found 2 solutions by Fombitz, josmiceli:
Answer by Fombitz(32388) About Me  (Show Source):
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+a+-+3b+=+9b+-+7a+
Add +7a+ to both sides
+8a+-+3b+=+9b+
Add +3b+ to both sides
+8a+=+12b+
Divide both sides by +b+
+8%2A%28+a%2Fb+%29+=+12+
Divide both sides by +8+
+a%2Fb+=+12%2F8+
+a%2Fb+=+3%2F2+
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check:
+a+=+%283%2F2%29%2Ab+
+a+-+3b+=+9b+-+7a+
+%283%2F2%29%2Ab+-+3b+=+9b+-+7%2A%283%2F2%29%2Ab+
Divide both sides by +3b+
+1%2F2+-+1+=+3+-+7%2F2+
Multiply both sides by +2+
+1+-+2+=+6+-+7+
+-1+=+-1+
OK