Please someone solve this
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1
Answer:
9
Step-by-step explanation:
8. 3. 4
1. 5. x
6. 7. 2
8+3+4 =15
6+7+2=15
1+5+x=15
x=9
8+1+6=15
3+5+7=15
4+x+2=15
x=9
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