20 - x × 2 = 10
=> x × 2 = 20 - 10
=> x × 2 = 10
=> x = 10 : 2
=> x = 5
Vậy x = 5
20 - X x 2 = 10
X x 2 = 20 - 10
X x 2 = 10
X = 10 : 2
X = 5
Hok tốt ^^
Trả lời :
20 - x . 2 = 10
x . 2 = 20 - 10
x . 2 = 10
x = 10 : 2
x = 5
Hok tốt
-Ken-
20 - X x 2 = 10
X x 2 = 20 - 10
X x 2 = 10
X = 10 : 2
X = 5
Hok tốt !
\(20-x\times2=10\)
\(x\times2=20-10\)
\(x\times2=10\)
\(x=10:2\)
\(x=5\)
HOK TOT