You are given a 2 digit number. 7 times its tens digit plus 6 times its ones digit is equal to 75;
8 times its tens digit minus 1 times its ones digit is equal to 15. What is the number ?

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sometthing here
let x be the 10's digit
let y be the 1's digit
7x+6y=75
what's the other equation?

wouldnt it be :
8x - 1 = 15?
Wait that might be totally wrong.. :P

ok but does anyone know the answer?

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