Question 548614
Let the width of sidewalk be x 															
..															
Length of garden =			12												
Width =			8												
															
Area =			96		M^2										
Area of sidewalk =			96	M^2											
Length of ground + sidewalk =							12								
width of ground + sidewalk = 				12+2x											
															
(12+2x)(8+2x)-96=96
96+24x+16x+4X^2	-96=96
4X^2+40x-96=0
/4
x^2+10x-24=0
x^2+12x-2x-24=0
x(x+12)-2(x+12)=0
(x-2)(x+12)=0
					
					
	Ignore negative value		
width = 2ft