SOLUTION: Given: -3r+1/2=4 Prove: r=-7/6

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Question 678876: Given: -3r+1/2=4
Prove: r=-7/6
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
-3r%2B%281%2F2%29=4
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Multiply the entire equation by 2
2%28-3r%29+%2B+2%281%2F2%29+=+2%284%29
-6r + 1 = 8
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Isolate the r variable
-6r = 8 - 1
-6r = 7
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Divide both sides by -6
r = %287%2F-6%29+=+-%287%2F6%29
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