Question

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

Answer 1

1)х:5=150-120
х:5=30
х=30*5
х=150

Answer 2

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