Take 1st equation 2m-3p-n=0
Take 2nd equation 2m-5p-n=14
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now exchnage signs of the 2nd equation and do adition with changed signs.
2m -3p -n= 0
2m -5p -n= 14
(-) (+) (+) (-)
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2p = -14
p = -7
value of p is -7
If 2m - n = 3p and 2m - 5p - n = 14, what is the value of p?
1 answer