Question

(63-у)+109=121 решите

Answer 1

63-y= 121-109 63-y=12 y= 63-12 y=51 63-51+109=121

Answer 2

(63 - у) = 121 - 109
(63 - у) = 12
63 - у = 12
у = 63 - 12
у = 51