Let's assume Sydney's age as 'x'.
According to the problem, Brian is three times older than Sydney. Therefore, Brian's age will be 3x.
The sum of their ages is eight, so the equation can be written as:
x + 3x = 8
Write an equation to represent each of the following word problems. Use x and do not simplify expression
Brian is three times older than Sydney. The sum of the ages of Brian and Sydney is eight. Write an equation that could be used to find how old Brian is.
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