3.x-10=5
3.x =5+10
3.x = 15
x = 15 : 3
x = 5
3 . x - 10 = 5
3 . x = 5 + 10
3 . x = 15
x = 15 : 3
x = 5
3 . x - 10 = 5
3 . x = 5 + 10
3 . x = 15
x = 15 : 3
x = 5
\(3\cdot x-10=5\)
\(3\cdot x=5+10\)
\(3\cdot x=15\)
\(x=15\text{ : }3\)
\(x=5\)
3.x-10 = 5
3.x = 5+10
3.x = 15
x = 15 : 3
x = 5
Vậy x = 5.
\(3\cdot x-10=5\)
\(3\cdot x=5+10\)
\(3\cdot x=15\)
\(x=5\)
3.x - 10 = 5
3.x = 5 + 10
3.x = 15
x = 15 : 3
x = 5
Học tốt
3x - 10 = 5
3x = 5 + 10
3x = 15
x = 15 : 3 = 5