Question

E + f =48
e=3f
Plz help - thanks

Answer 1

`given \: \\ \\ e = 3f \\ e + f = 48 \\ \\ 3f + f = 48 \\ 4f = 48 \\ f = (48)/(4) \\ f = 12 \\ so. \\ e = 3 * 12 = 36`

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