( X x 5 - 19) - X x 3 +24 = 125
(X x 5- 19) - X x 3 =125 - 24 = 101
X x 5 - 19 =101 + X x 3
X x 5- X x 3 =101 + 19 = 120
X x 2 =120
X =60