Beginning 39061

Alena and Bára had 1,500 CZK saved together at the end of January. After Alena spent CZK 318 from her savings and Bára spent CZK 249 from her savings in February, Alena had twice as much CZK saved as Bára. How much money did they have at the beginning?

Correct answer:

a =  940
b =  560

Step-by-step explanation:


a+b=1500
a-318 = 2·(b -249)

a+b = 1500
a-2b = -180

Row 2 - Row 1 → Row 2
a+b = 1500
-3b = -1680


b = -1680/-3 = 560
a = 1500-b = 1500-560 = 940

a = 940
b = 560

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