Question 1137029
the area of the garden is 42 square meters.
the width is 3 meters.
the length is 42 / 3 = 14 meters.


the 3 logs total measurements will be 1 meter more than 14 = 15 meters.


divide 15 meters by 3 and you get 5 meters per log.


you will lay 3 logs on each side along the length of the garden.


the total measurement of the 3 logs is 15 meters.


you cut off 1 meter from the third log on each side and the total measurement is now 14 meters which just fits.


to use x in this problem, you would do the following.


x is the length of one log.


there will be 3 logs on each side of the length whose total length will be 1 meter more than required.


therefore you get 3x = L + 1.


solve for L to get L = 3x - 1.


the area of the garden is equal to L * W, where L is the lenth and W is the width and A is the area.


since the area is 42 and the width is 3, then A = L * W becomes 42 = L * 3.


solve for L to get L = 42 / 3 = 14.


since L = 3x - 1, you get 3x - 1 = 14.


add 1 to both sides of this equation to get 3x = 15.


solve for x to get x = 5.


the length of a whole log is equal to x which is equal to 5.


that's your solution.