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alex41 [277]
3 years ago
14

Solve this 6r+7=13+7r

Mathematics
2 answers:
Arisa [49]3 years ago
6 0
  6r + 7 = 13 + 7r
<u>- 6r                - 6r</u>
         7 = 13 + r
    <u>- 13  - 13       </u>
       -6 = r
alex41 [277]3 years ago
3 0
Let's move all to one side:

6r+7-13-7r=0

and re-arrange  to have similar terms together:
6r-7r +7-13=0

let's add up what we can:

-1r-6=0
we can move the -6 to the other side and multiply both sides by -1 and we get:
r=-6 This is the<em> solution.  </em>


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