\(27x+30x+43x=210500\)
\(100x=210500\)
\(x=210500:100\)
\(x=2105\)
vậy \(x=2105\)
= a x (27 + 30 + 43 )
= a x 100
= 210 500 : 100
= a = 2105
X x 27 + X x 30 + X x 43 = 210 500 .
X x 100 = 210 500 .
X = 210 500 : 100 .
X = 2105 .
X x 27 + X x 30 + X x 43 = 210 500
=> X x (27 + 30 + 43) = 210 500
=> X x 100 = 210 500
=> X = 210500 : 100
X = 2 105