The width of a rectangle is 6 units less than its length x. Which expression
1 answer:
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Answer:
(C) 18
Step-by-step explanation:
We can create a systems of equations. Assuming is Michelle's age,
is Joan's age, and
is Ryan's age, the equations are:
We can use substitution, since we know the "values" of m and j.
So we know that Joan is 18 years old.
Hope this helped!