Question 1027409
the length of a rectangle is 7m less than three times the width.
width =x
length = 3x-7



 If the length is decreased by 5 => (3x-7)-5 = 3x-12

 and the width by three, => x-3


the perimeter will be 90m.

2( (3x-12)+(x-3)=90

2(4x-15)=90

4x-15 = 45
4x=60
x=15

find length