John is four years older than frank, the sum of their ages is 36
1 answer:
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So first, you get the absolute value to one side:
Next, set up two equations; One where the value inside the absolute value lines is positive, and another where it is negative, and solve both for the variable:
Your answers are 8 and -8, or +-8.
Next, set up two equations; One where the value inside the absolute value lines is positive, and another where it is negative, and solve both for the variable:
Your answers are 8 and -8, or +-8.