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Aleonysh [2.5K]
3 years ago
13

If ln= 6x-5 lm=x+7 mn= 3x+2- find mn

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
8 0

By using this it works:

LN + LM = MN

Then we can drive:

(6x-5) + (x+7) = 3x-2

and by adding the like terms... :

7x+2 = 3x-2\\    4 x= -4\\x=-1

Hope this understands you...


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