Question 1134753
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<pre>
Carlos     + Juan + Jose     = 140


(Juan + 3) + Juan + (Juan-4) = 140


3*Juan + 3 - 4               = 140


3*Juan - 1                   = 140


3*Juan = 140 + 1             = 141


Juan = 141/3 = 47.                       <U>ANSWER</U>
</pre>

Solved.