Răspunsuri

2014-09-03T13:17:35+03:00
1) ax4=200-120

4a=80

a=80/4

a=20

2)(a+78)/5 =332-312

a+78=5* 20

a+78=100

a=100-78

a=22
1 4 1
  • Utilizator Brainly
2014-09-03T13:18:22+03:00
A*4=200-120
a*4=80
a=80:4
a=20

==============

(a+78)/5+312=332
(a+78)/5=20
a+78=20*5
a+78=100
a=22
1 4 1