SOLUTION: Judy age now is twice tom's age decreased by 10. In four years, the sum of Judy's age and Tom's age will be 40, How old is Tom now? Please solve using substitution or elimination ,

Algebra ->  Human-and-algebraic-language -> SOLUTION: Judy age now is twice tom's age decreased by 10. In four years, the sum of Judy's age and Tom's age will be 40, How old is Tom now? Please solve using substitution or elimination ,      Log On


   

Question 1179309: Judy age now is twice tom's age decreased by 10. In four years, the sum of Judy's age and Tom's age will be 40, How old is Tom now? Please solve using substitution or elimination , thanks
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
j, Judy
t, Tom
system%28j=2t-10%2Cj%2Bt%2B4%2B4=40%29

system%28j%2Bt=32%2Cj=2t-10%29

%282t-10%29%2Bt=32
.
.