Решите уровнения. 1. х: 5+120=150. 2. х+120: 5=150. 3. 5•х+120=150. 4. 5•3+х=150

1)х:5=150-120
х:5=30
х=30*5
х=150

X : 5 + 120 = 150
x:5 = 150-120
x:5 = 30
x = 30*5
x = 150

x + 120 : 5 = 150
x + 24 = 150
x = 150 - 24
x = 126

5*x + 120 = 150
5*x = 150 - 120
5*x = 30
x = 30/5
x = 6

5*3+x = 150
15+x = 150
x = 150-15
x  = 135