40 х-6=9, х+2=42 23-х=3

Question

40
х-6=9,
х+2=42
23-х=3

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Comments

нужно с проверкой

Answer 1

Х-6=9; х=9+6; х=15; 15-6=9;. ____ 2)х+2=42; х=42-2; х=40; 40+2=42;______ 3)23-х=3; 23-3=х; х=20; 23-20=3.

Answer 2

1)x=9-6
x=3
2 )x=42-2
x=40
3)x=3-23
x=-20