1.8+7n = 9.6 - 4n first, you need to group the numbers with same radical, so you move 7n to the other side, and same for 9.6 (P.S., when moving a number from a side to another, you change his sign): 1.8 - 9.6 = -7n -4n then, you calculate each side: -7.8 = -11n then, you found n n= -7.8/-11 n= 0.7 (approximately) Hope this Helps :D
