algebra
posted by packy .
the units digit of a 2digit number exceeds twice the tens digit by 1. find the number if the sum of its digits is 10.
Please help i am completley lost!!

x y
y = 2x+1
y = 10x
so
10x = 2x+1
3 x = 9
etc 
im still pretty confused, but i think u r suppossed to solve the 2 equations u gave and got (3,7) but i think im way off

Check it by using 37 in the problem statement.
the units digit (7) of a 2digit number (37)exceeds twice the tens (2*3=6) digit by 1.(6+1=7 sure enough)) find the number if the sum of its digits is 10. (3+7=10 sure enough) 
thank u
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