решите уравнения (если можно то к ни предумать задачу)
x-(560/4)=1800
y*(80/20)=1800
х-140=1800
х=1800+140
х=1940
у*4=1800
у=1800/4
у=450
1) x - (560/4) = 1800
х - 140 = 1800
х = 1800 + 140
х = 1940
2) у * (80/20) = 1800
у * 4 = 1800
у = 1800/4
у = 450
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Answers & Comments
х-140=1800
х=1800+140
х=1940
у*4=1800
у=1800/4
у=450
1) x - (560/4) = 1800
х - 140 = 1800
х = 1800 + 140
х = 1940
2) у * (80/20) = 1800
у * 4 = 1800
у = 1800/4
у = 450