Question

Afla numărul necunoscut x:15=7150+9200
15600+(x-100)=172001-92000
111•6-37•9:3-x=5550
222•11+222•x=2222:11

Answer 1

x:15=16350

x=16350*15

x=245250

15600+(x-100)=80001

x-100=80001-15600

x-100=64401

x=64401+100

x=64501

666-333:3-x=5550

666-111-x=5550

555-x=5550

x=555-5550

x= -4995

2442+222x=202

222x=202-2442

222x= -2240

x= -2240/222

x= -10,(09)

Answer 2

x:15=16350

×=16350×15

×=245250

×-100=64401

×=64501

666-111-×=5550

555-×=5550

×=-4995

2442+222×=202

222×=202-2442

222×=-2240

×=-10.09