After doing this I got 1/4. Can someone plz show and explain what I did wrong? 7- 3r = r - 4(2 + r)

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09-10-2017
Mathematics

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After doing this I got 1/4. Can someone plz show and explain what I did wrong? 7- 3r = r - 4(2 + r)

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kphung76127 kphung76127 · Answer 1 · 2017-10-09T03:09:41+02:00

kphung76127 kphung76127

09-10-2017

First distribute on the right
7-3r=r-8-4r

Combine like terms
7-3r=-4-3r

Add 3r to both sides
7=-8

The resulting statement is false so there is no real number solution.

Final answer: No solution

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