The area of a rectangle is 60 in² and the length of the rectangle is 7 in. longer than the width. The area of a rectangle is found by multiplying the length times the width. During the Set Up step of the five-step problem-solving plan, which equation would you set up to solve for the width?
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let the width. be x
∴ length =[x +7]
The area of a rectangle is 60 in²
The area of a rectangle is l*b
60 in² =[x +7]×x
60 in²=x^2+7x
x^2+7x -60=0
x^2+12x-5x -60=0
x[x+12] -5 [x+12] =0
[x-5] [x+12] =0
x=5 ,x=-12
width. be x =5 in ans
length =[x +7] 5+7 =12 in ans
width= area÷length
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