320:(52-х)=8 и 50*у-72=78 решите пж уравнения

Question

320:(52-х)=8 и 50*у-72=78 решите пж уравнения

Answer 1

320:(52-x)=8
52-x=320:8
52-x=40
x=52-40
x=12

50*y-72=78
50*y=78+72
50*y=150
y=150:50
y=3

Answer 2

320:(52-х)=8
52-х=320:8
52-х=40
х=52-40
х=12

50*у-72=78
50у=78+72
50у=150
у=150:50
у=3

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