Tìm giá trị của X: X x 4 + 1/2 x X = 55,53

\(x\times4+\frac{1}{2}\times x=55,53\)

\(x\times\left(4+\frac{1}{2}\right)=55,53\)

\(x\times\frac{9}{2}=55,53\)

\(x=12,34\)

X x 4 + 1/2 x X = 55,53

X x (4 + 1/2) = 55,53

X x 9/2 = 55,53

X = 55,53 : 9/2

X = 12,34

x = 12,34