If the length of a side of a square is increased by 3 centimeter, the perimeter of the new square is 40 centimeters more than twice the length of the side of the original square. Find the length of the side of the original square.
If the length of a side of a square is increased by 3 centimeter, the perimeter of the new square is 40 centimeters more than twice the length of the side of the original square. Find the length of the side of the original square.
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Let be the side length of the original square.
Let be the perimeter of the new square
Then
Now we are told that
Now we just solve for . I think you can take it from here