x -------------- - 56 +17 1) 2) 3) 4) +24 - 7 ----------- 63 x=

Question

x
--------------
- 56
+17 1) 2) 3) 4)
+24
- 7
-----------
63 x=

Answer 1

Х=85, т.е. х-56+17+24-7=63, х-56=63-17-24+7
х-56=29 х=29+56 х=85