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18 March, 18:43

if the difference in the side lengths of two squares is 10, and the sum of the side lengths is 18. what are the side of lengths?

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  1. 18 March, 21:34
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    14, 4

    Step-by-step explanation:

    Let's say the square side lengths are x and y. Then x-y=10 and x+y=18. Solve by solving for one variable then substituting into the other equation

    x+y=18 so x=18-y

    Substitute:

    18-y-y=10

    18-2y=10

    18-18-2y=10-18

    -2y=-8

    y=4

    Substitute y=4 back into the other equation.

    x+y=18

    x+4=18

    x=18-4

    x=14
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