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How many solutions does the system 2y=10x-14 and 5x-y=7 have? need worked out step by step please!

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A630061087id
these 2 equations are actually the same, 
hope u can understand.
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Deathstrike001id
2y=10x-14
5x-y=7

Divide both sides by 2 in the 1st equation
y=5x-7
Now substitute is to 2nd equation 
5x-5x+7=7
0=0

Therefore there is no solution or it is inconsistent 

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