Question

51-((9+x:5)*3-17)=23

Answer 1

(9+х:5):3=45
9+х:5=15
х:5=6
х=6/5

Answer 2

51-((9+x:5)*3-17)=23
((9+х:5)8Х3-17)=51-23=18
(9+х:5)х3=18+17=35
27+3х:15=35
3х:15=35-27=8
3х=8х15=120
х=120:3=40

Answer 3

51-23=28