Question

a+b =100 a-b=32
Repede dau 20 pt+coroana

Answer 1

A+B=100
A-B=32
A=B+32
B+32+B=100
2B=68
B=34
A=34+32=66

Answer 2

a+b=100=) a=100-b
a-b=32=) 100-b-b=32=) -2b=32-100=)2b=68=)b=34
a=100-b=100-34=66