Question 620425
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
silvio is <u>10 years older than maria's age</u> {{{highlight(x)}}}   . 
The sum of their ages is equal to four times maria's age.
 How old are silvio and maria? Write an equation. 
  {{{highlight(x)}}}  + ({{{highlight(x)}}}  + 10) = 4x
   10 = 2x
   x = 5, Maria's age.  Silvo is 15.
  CHECKING our Answer***
    5 + 15 = 4·5 = 20