Question

afla numarun natural x care verifica egalitatea (x+20)-120:6x10=100

Answer 1

(x+20)-120:6x10=100(x+20)-120/6=10
(x+20)-120=60
x+20=180
x=160

Answer 2

(x+20)-120:6x10=100
(x+20)-120:6=100:10
(x+20)-120:6=10
(x+20)-120=10x6
(x+20)-120=60
x+20=60+120
x+20=180
x=180-20
x=160