5y +7y-0,204=0,204 2,4x-1,5x+47=1919

Question

5y +7y-0,204=0,204
2,4x-1,5x+47=1919

Answer 1

5у + 7у = 0,204 + 0,204
12у = 0,408
у = 0,408 : 12
у = 0,034

2,4х - 1,5х = 1919 - 47
0,9х = 1872
х = 1872 : 0,9
х = 2,080