Question

2006•79+2006•21=
217•37+217•69-217•43
1+3+5…+110
2+4+6+…+10.000
6x-1=61
13-x=7

Ajutați-mă te roggg repede

Answer 1

Răspuns:

-x=7|-13

-x=-6|×(-1)

=>x=6

Answer 2

2.006x79+2.006x21=206.600

=158.474+42.126

=206.600

217x37+217x69-217x43=13.671

=8.029+14.973-9.331

=23.002-9.331

=13.671

1+3+5...+110=12.320

=110+2=112

=110x112=12.320

2+4+6...+10.000=100.020.000

=10.000+2=10.002

=10.000x10.002=100.020.000

6x-1=61

x=1+1

x=2

62-1=61

13-x=7

x=13-7

x=6

13-6=7

Sper ca te-am ajutat!