John's age increased by 11 is 5 less than 5 times his age.
Replace the words "John's age" and "his age" by "x":
x increased by 11 is 5 less than 5 times x.
Replace the words "x increased by 11" by "x + 11":
x + 11 is 5 less than 5 times x.
Replace the words "5 times x" by "5x":
x + 11 is 5 less than 5x.
To make 5x less we subtract from it. So replace "5 less than 5x" by "5x - 5"
x + 11 is 5x - 5.
Replace the word "is" by " = ":
x + 11 = 5x - 5
Edwin
