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1 клас рівняння
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х - 2 = 8
10
Oops!
Okay!
10 - х = 2
8
Oops!
Okay!
10 - х = 1
9
Oops!
Okay!
80 - х = 10
70
Oops!
Okay!
х - 9 = 10
19
Oops!
Okay!
90 - х = 70
20
Oops!
Okay!
10 - х = 6
4
Oops!
Okay!
х - 1 = 10
11
Oops!
Okay!
х + 10 = 40
30
Oops!
Okay!
3 + х = 7
4
Oops!
Okay!
х + 10 = 12
2
Oops!
Okay!
4 + х = 12
8
Oops!
Okay!
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