\(x.7+456.3+x.2=3483\)
\(x\left(7+2\right)+1368=3483\)
\(9x=2115\)
\(x=235\)
x . 7 + 456 . 3 + x . 2 = 3483
x . ( 7 + 2 ) + 1368 = 3483
x . 9 + 1368 = 3483
x . 9 = 3483 - 1368
x . 9 = 2115
x = 2115 : 9
x = 235
Bài làm
X x 7 + 456 x 3 + X x 2 = 3483
X x 7 + 1368 x 3 + X x 2 = 3483
X x ( 7 + 2 ) + 1368 = 3483
X x 9 + 1368 = 3483
X x 9 = 3483 - 1368
X x 9 = 2115
X = 2115 : 9
X = 235
Vậy X = 235
# Chúc bạn học tốt #
\(x\cdot7+456\cdot3+x\cdot2=3483\)
\(\Rightarrow x\cdot7+x\cdot2+456\cdot3=3483\)
\(\Rightarrow x\cdot9+456\cdot3=3483\)
\(\Rightarrow x\cdot9+1368=3483\)
\(\Rightarrow x\cdot9=3483-1368\)
\(\Rightarrow x\cdot9=2115\Rightarrow x=235\)
P/S : Hoq chắc :>