X x 23.4 + X x 16.6 = 1600
X x ( 23.4 + 16.6 ) = 1600
X x 40 = 1600
X = 1600 : 40
X = 40
X*23.4+x*16.6=1600
x*(23,4+16,6)=1600
x*40=1600
x=1600:40
x=40
X x 23,4 + X x 16,6 = 1600
X x ( 23,4 + 16,6) = 1600
X x 40 = 1600
X = 1600 : 40
X =40
Vậy X =40
Đ/s: 40
\(x\times23,4+x\times16,6=1600\)
\(x\times\left(23,4+16,6\right)=1600\)
\(x\times40=1600\)
\(x=1600:40\)
\(x=40\)
Vậy x = 40
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