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17 February, 06:39

The combined land area of the countries a and b is 186,973 square kilometers. Country a is larger by 373 square kilometers determine the land area of each country

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  1. 17 February, 09:57
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    So a+b=186973

    a is bigger than b by 373

    that means

    b+373=a

    so we subsitute

    a+b=186973

    b+373+b=186973

    subtract 373 from both sides

    b+b=186600

    2b=186600

    divide both sides by 2

    b=93300

    subsitute

    b+373=a

    93300+373=a

    93673=a

    a=93673 km^2

    b=93300 km^2
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