Question

(x-17)+21=46 (x+37)-91=46

Answer 1

46-21=25 25+17=42 (42-17)+21=46

Answer 2

91+46=137 137-37=100 (х+37)_31=46

Answer 3

х=100

Answer 4

x-17+21=46; x=46+17-21; x=42