Let numbers be x and y
ATQ
- x+y=49---(1)
- x-y=9---(2)
Adding both
Now putting value in eq(2)
the width of a rectangle is 5 inches less than the length. The area is 80 square inches. Find the length and the width.
1 answer:
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In order to find the equivalent expression, let's use the following property:
In other words, when subtracting a negative number, we can just add the corresponding positive number, that is, switch the two negative signs for a positive sign.
So we have that:
Therefore the correct option is D.