1) ( X - 87) = 36 + 27
( X - 87 ) = 63
X = 63 + 87 = 150
2) X - 87 - 27 = 36
X - 114 = 36
X = 36 + 114 = 150
............................................................................................
2) 87 - 22 = ( 41 + Х )
65 = ( 41 + X )
X = 65 - 41 = 24
2) 87 - 41 - X = 22
46 - X = 22
X = 46 - 22
X = 24