The answer is: ________________ n = ¼ ; or, write as: n = 0.25 ______________________ Explanation: __________________ -7 / (2n) = 49 ; __________________ -49 * (2n) = -7 ; ________________ Divide each side by "(-49)" ; to isolate the "2n" on one side, and to get rid of the "negative" values: _____________________________ [-49*(2n)] / -49 = -7/ -49 ; to get: _______________________________ 2n = (½); Now, divide EACH side of the equation by "2"; to isolation "n" on one side of the equation, and to solve for: "n"; __________________________________________________ 2n / 2 = (½) / 2 ; _________________ To get: _______________ n = ¼ ; or, write as: n = 0.25 ____________________
we have 342 students, subtract 12 because we need only kids riding the bus, now we have 330 kids, we divide the 330 kids between 6 buses 330/6, our answer is 55.
