Решите уравнения
а) 9y-3y=666
б) 3x+5x=1632
в) 7m+m-12=28
г) 16t-t+5=50

а) 9y - 3y = 6666y / 6 = 666 / 6y = 666 / 6 => y = 111б) 3x + 5x = 16328x = 1632x = 204в) 7m + m - 12 = 288m - 12 = 288m = 40m = 5г) 16t - t + 5 = 5015t + 5 = 5015t = 45t = 3

9у-3у=6666у=666у=666:6у=1113х+5х=16328х=1632х= 1632:8х=2047m+m-12=288m=28+128m=40m=40/8m=516t-t+5=5015t+5=5015t=50-515t=45t=45/15t=3