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Mathematics
Arden
13 February, 10:34
12 r - 18 = 13 r + 18
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Michelle Macias
13 February, 12:52
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First you want to isolate the variable, do this by adding 18 to both sides. You're left with 12r = 13r + 36, then subtract 13r to get the variables alone. You're then left with - 1r = 36, multiply by - 1 to remove the negative. The final result would be (1) r = 36.
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Allie Esparza
13 February, 14:26
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12r-18=13r+18
-12r. - 12r
1r-18=18
+18 + 18
1r = 36
1r/1=36/1
r=36
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