Question 1149940
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Craig is 4 years older than Colleen. Their total age is 76 years. How old are they? This is a linear equation.
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        The solution and the answer in the post by @addingup are incorrect.
        Anyone can easy check incorrectness by adding the values of the @addingup answer.


        I came to bring a correct solution.



Let Colleen's age  be x years.
Then Craig age is (x+4) years.           (Craig is 4 years older than Colleen)


x + (x+4) = 76            (their combined age)
2x + 4 = 76
2x = 76 - 4
2x = 72
x = 72/2
x = 36 
So Colling is 36 years old and Craig is 36 + 4 = 40 years old.   &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U>


Solved correctly.