A math problem asks when two brothers will have saved the same amount of money. When Marta writes and solves the equation, her f
1 answer:
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The process is:
C = 2nr
2nr = c
r (2n) = c
That's the answer☝️☝️☝️☝️
or maybe this one
r = 2n + c
sorry, I'm unsure, it has been too long since I studied that...