John's age increased by 11 is 5 less than 5 times his age. How old is he?

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Answer 1 · 2018-05-16T03:50:00

John is #4# years old

If John's age is denoted as #a#, then:

#=>a+11 = 5a-5#

Subtract #a# from both sides

#=>11 = 4a - 5#

Add #5# to both sides

#=>16 = 4a#

Divide both sides by #4#

#=>4 = a#