X + X x 2 + X x 3 = 1,23
X x 1 + X x 2 + X x 3 = 1,23
X x ( 1 + 2 + 3 ) = 1,23
X x 6 = 1,23
X = 1,23 : 6
X = 0,205
bạn tk mik nha
X + X x 2 + X x 3 = 1,23
X x ( 1 + 2 + 3 ) = 1,23
X x 6 = 1,23
X = 1,23 : 6
X = 0,25
Chúc bạn may mắn
\(x+x\times2+x\times3=1,23\)
\(x\times1+x\times2+x\times3=1,23\)
\(x\times\left(1+2+3\right)=1,23\)
\(x\times6=1,23\)
\(x=1,23\div6\)
\(x=0,205\)