Question

7+x+x nhan3 bang 2  nhan 19+2nhan x

Answer 1

khó đọc quá , bn sửa lại nội dung co mik xem đc không :VV

Answer 2

xin loi vi may toi ko viet dau duoc

Answer 3

:v oh ok , vậy thì bó tay rồi , khó đọc quá :V

Answer 4

\(7+x+3x=2.19+2x\)

\(7+4x=38+2x\)

\(4x-2x=38-7\)

\(2x=31\)

\(x=\frac{31}{2}\)

Vậy...

Answer 5

2 nhan 19+2nhan x 

có ngoặc ko bạn

Answer 6

\(7+x+x\times3=2\times19+2\times x\)

\(7+4\times x=38+2\times x\)

\(4\times x-2\times x=38-7\)

\(2\times x=31\)

\(x=31:2\)

\(x=\frac{31}{2}\)

~ Hok tốt ~