Răspuns :
a+b=44
a-b=28⇒a=b+28
?=a,b
a/..../28/
b/...../
44-28=16(suma egala)
16:2=8(b)
8+28=36(a)
V:36+8=44
a + b = 44
a - b = 28 => a = 28 + b
28 + b + b = 44
28 + 2b = 44
2b = 44 - 28
2b = 16
b = 16 : 2
b = 8
a = 8 + 28
a = 36
a+b=44
a-b=28⇒a=b+28
?=a,b
a/..../28/
b/...../
44-28=16(suma egala)
16:2=8(b)
8+28=36(a)
V:36+8=44
a + b = 44
a - b = 28 => a = 28 + b
28 + b + b = 44
28 + 2b = 44
2b = 44 - 28
2b = 16
b = 16 : 2
b = 8
a = 8 + 28
a = 36