8x-75=5x+21
=> 8x-5x=21+75
=> 3x = 96
=> x = 32
\(\Leftrightarrow8x-5x=21+75.\)
\(\Leftrightarrow3x=96\)
=> x= 32
8x-75=5x+21
8x-5x= 75+21
x.(8-5)= 96
x.3= 96
x= 96:3
x= 32
Vậy x= 32
8x - 75 = 5x + 21
8x - 5x = 75 + 21
3x = 96
x = 96 : 3 = 32
8x - 75 = 5x + 21
=> 8x - 5x = 21 + 75
=> 3x = 96
=> x = 96 : 3
=> x = 32
Vậy x = 32