Question 1121197
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My tens digit 4 more than my ones digit.my hundreds digit is 7 less than my tens digit.the sum of my digit is 16
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{{{100h+10t+u}}}

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{{{system(t=u+4,h=t-7,u+t+h=16)}}}


Substitute for these {{{system(u=t-4,h=t-7)}}}, in the digit-sum equation.


{{{(t-4)+t+(t-7)=16}}}

{{{t-4+t+t-7=16}}}

{{{3t-11=16}}}

{{{3t=27}}}

{{{highlight(t=9)}}}---------and you can find the values for u and h.

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{{{system(u=9-4=5,h=9-7=2)}}}



The Number:   295