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คณิตศาสตร์
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y−3=7
10
Oops!
Okay!
7t−8=13
3
Oops!
Okay!
x +1=5
4
Oops!
Okay!
3m+2=11
3
Oops!
Okay!
z +3=6
15
Oops!
Okay!
x+5=12
7
Oops!
Okay!
3x+12=6
2
Oops!
Okay!
2v+7=15
4
Oops!
Okay!
4p−1=15
4
Oops!
Okay!
4x=20
5
Oops!
Okay!
2n−5=9
7
Oops!
Okay!
5r−3=12
3
Oops!
Okay!
6s+4=22
3
Oops!
Okay!
9w−5=22
3
Oops!
Okay!
2a=16
8
Oops!
Okay!
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