Perimeter of a rectangle

If the perimeter of a rectangle is 114 meters and the length is twice the width plus 6 meters, what are the length and width?

Correct result:

a =  40
b =  17

Solution:


2(a+b)=114
a = 2b + 6

2•(a+b)=114
a = 2•b + 6

2a+2b = 114
a-2b = 6

a = 40
b = 17

Our linear equations calculator calculates it.



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