jawab donk pake cara...

300 - 75 = 3n + 75

225 = 3n + 75

150 = 3n

n = 50 (A)

300-75 = (3 x n) +75
225 = 3n + 75
225 -75 = 3n
150 = 3n
n = 150/3
n = 50. A

makasih jagan lupa jadikan jawaban terbaik ya :)