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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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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