Question 1103657
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Susan + Lamar + Bob = 125

S     + L      + B  = 125

s     + (S+5)  + 4S = 125


6S + 5 = 125  ====>  6S = 125 - 5 = 120  ====>  S = {{{120/6}}} = 20.


From this point, can you complete the solution on your own ?
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