Question

Tìm y biết:yx6+1+3+5+7+9+...+19=292

Answer 1

yx6+1+3+5+7+9+...+19=292

yx6+[(19-1):2+1]x(19+1):2=292

yx6+10x20:2=292

yx6+200:2=292

yx6+100=292

yx6=292-100

yx6=192

y=192:6

y=32

Answer 2

Y*6+(1+3+5+...+19)=292

6*y+100=292

6*x=292-100

x=192/6

x=32

Answer 3

1+3+5+7+...+19=100

6xy+100=292

6xy=292-100

6xy=192

y=192:6

y=32

Answer 4

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