2x - 51 : 17 = 5
2x - 51 = 85
2x = 136
x = 68
2x - 51 = 5 * 17
2x - 51 = 85
2x =85+51
2x = 136
x = 136 : 2
x = 68
2x - 51 : 17 = 5
<=> 2x - 3 =5
<=> 2x = 5+3
<=> 2x = 8
<=> x= 4
vậy x = 4
k mik nha
2x - 51 : 17 = 5
2x - 3 = 5
2x = 5 + 3
2x = 8
x = 8 : 2
x = 4
2x - 3 = 5
2x = 5+3
2x = 8
x = 8:2
x = 4
2x - 51 : 17 = 5
2x - 51 = 5 x 17
2x - 51 = 85
2x = 85 + 51
2x = 136
x = 136 : 2
x = 68
k mk nhaaa
2x-51:17 =5
2x-3 = 5
2x=5+3
2x=8
x =8:2
x= 4
2x - 3 = 5
2x = 5+3
2x =8
x =8:2
x =4.
Vậy x = 4.