What is the combined land area of the countries A and B is 154,973 square kilometers. Country A is larger by 573 square kilometers. Determine the land area of each country

Start with B=A-573. - - > A+B=154,973.--> A + (A-573) = 154,973. - - > 2A-573=154,973. - - > 2A = 154,400. - - > A = 154,400/2 = 77,200. A = 77,200.

To find B. : : 77,200+B=154,973. Subtract A from combined area.--> B = 77,773