Răspuns:
a+b=44
a<b
b=4,5a
a+b=44 <=> a+4.5a=44 <=> 5.5a=44 <=> a=44/5.5 <=> a=8
b=a×4.5 <=>b=a×4.5 <=> b=a×4.5 <=> b=a×4.5 <=>
=> <=> a=8 <=> a=8
<=> b=4.5×8 <=> b=36
Verificare: 8+36=44 <=> 44=44 -> Adevarat
b=4.5×8 <=> b=36 -> Adevarat
Răspuns:
Explicație pas cu pas:
a+b=44
a=4si1/2xb deci a=9/2 xb (am introdus intregul in fractie)
Introduc val lui a in prima rel si obtin:
4,5xb+b=44
5,5xb=44
b=44:5,5 deci 440:55=8
deci b=8
a=44-8
a=36
