\(34\cdot x-3\cdot x-x=540\)
\(\left(34-3-1\right)\cdot x=540\)
\(30\cdot x=540\)
\(x=540:30\)
\(x=18\)
34 x X - 3 x X - X = 540
( 34 - 3 - 1 ) x X = 540
30 x X = 540
X = 540 : 30
X = 18
34 × x - 3 × x - x = 540
34 × - 3 × x - x × 1 = 540
( 34 - 3 - 1 ) × x = 540
30 × x = 540
x = 540 : 30
x = 18
Vậy x = 18