13-6+8= 14-9+6= 80-(12-7)= 90-(14-8)=

Question

13-6+8= 14-9+6= 80-(12-7)= 90-(14-8)=

Comments

13-6+8=7+8=15 ; 14-9+6=5+6=11 ; 80-(12-7)=80-5=75

Answer 1

13-6=7+8=15
14-9=5+6=11
12-7=80-5=75
14-8=90-6=84

Answer 2

13-6+8=7+8=15
14-9+6=5+6=11
80-(12-7)=80-5=75
90-(14-8)=90-6=84