bhallman94
If a rectangle has a perimeter of 70, a length of x and a width of x  9, find the value of the length of the rectangle.



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liliy
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dw:1338942105869:dw

liliy
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perimeter means add up all the sides: so x+x +(x9+(x9)=70

liliy
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4x18=70.
4x=88
x=22.