Question

Diferenta a doua numere este 22,3 .Determinati-le ,stiind ca suma lor este 28,56

Answer 1

a-b=22.3
a+b=28.56
a=b+22.3
b+22.3+b=28.56
2b+22.3=28.56
2b=6.26
 b=3.13
a-3.13=22.3
a=22.3+3.13=25.43

Answer 2

met.1
a-b=22,3
a+b=28,56
adunam ecuatiile si ne da
a-b+a+b=22,3+28,56
2a=50,86
a=25,43
b=28,56-25,43
b=3,13
met.2
a-b=22,3 de aici scoatem : a=22,3+b
a+b=28,56
22,3+b+b=28,56
2b=6,26
b=3,13
a=22,3+3,13
a=25,43