the answer of 2x +y = 20 ; 6x -5y =12
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Answer:
It would be B.
Step-by-step explanation:
4.5 hours = 270 minutes
Answer:I need help to some one pls help
Step-by-step explanation:
The third one
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SOLUTION:
Let unknown number = x
x + 19 = 8
x = 8 - 19
x = - 11
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