2*x+14*(34-9)=900
2*x+14*25=900
2*x+350=900
2*x=900-350
2*x=550
x=550:2
x=275
Vậy x = 275
2 x X + 14 x ( 34-9) = 900
2 x X + 14 x 25 = 900
2 x X + 14 = 900 : 25
2 x X + 14 =36
2 x X = 36 - 14
2 x X = 22
X = 22 : 2
X =11
2*x + 14* (34 - 9) = 900
2*x + 14* 25 = 900
2*x + 350 = 900
2*x = 900 - 350
2*x = 550
x = 550 : 2
x = 275
=> x = 275
2 * x + 14 * (34 - 9) = 900
2 * x + 14 * 25 = 900
2 * x + 350 = 900
2 * x = 550
x = 275
\(2\times x+14\times\left(34-9\right)=900\)
\(2\times x+14\times25=900\)
\(2\times x+350=900\)
\(2\times x=900-350\)
\(2\times x=550\)
\(x=550:2\)
\(x=275\)
2 * x + 14 * ( 34 - 9 ) = 900
2 * x + 14 * 25 = 900
2 * x + 350 = 900
2 * x = 900 - 350
2 * x = 550
x = 550 : 2
x = 225
Ta có : 2x + 14 .( 34 - 9) = 900
<=> 2x + 14. 25 = 900
<=> 2x + 350 = 900
<=> 2x = 900 - 350
<=> 2x = 550
=> x = 550 : 2
=> x = 275
Vậy x = 275