Answer:
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r = 13
Step-by-step explanation:
r-6=7
Add 6 to each side
r-6+6=7+6
5 x 4 +1 =21
21 x 4 +1 = 85
85 x 4 + 1 = 341
hihihihihihihihihih hehe
Yes its a rational number
