32:b=64:8

32:b=8

b=32:8

b=4

--------------

y:4=49:7

y:4=7

y=7•4

y=28

-------------

380-d=330-175

380-d=155

d=380-155

d=225

------------------

m+35=185-143

m+35=42

m=42+35

m=77

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