( x - 15 ) : 5 + 20 = 22
( x - 15 ) : 5 = 22 - 20
( x - 15 ) :5 = 2
x - 15 = 2 . 5
x - 15 = 10
x = 10 + 15
x = 25
Ai thấy mình đúng tk nha !
=> ( x - 15 ) : 5 = 22 - 20
=> ( x - 15 ) : 5 = 2
=> x - 15 = 2 . 5
=> x - 15 = 10
=> x = 10 + 15
=> x = 25
Vậy x = 25.
Chúc bạn học tốt.
(x-15):5=22-20
(x-15):5=2
x-15=2x5
x-15=10
x=10+15
x=25
( x - 15 ) ÷ 5 + 20 = 22
( x - 15 ) ÷ 5 = 22 - 20
( x - 15 ) ÷ 5 = 2
x - 15 = 2.5
x - 15 = 10
x = 10 + 15
x = 25
Vậy x = 25
( x - 15 ) : 5 + 20 = 22
(x - 15 ) : 5 = 22 - 20
( x - 15 ) : 5 = 2
( x - 15 ) = 2 x 5
x -15 = 10
x = 10 + 15
x = 25
( x - 15 ) : 5 + 20 =22
( x - 15 ) :5 =22-20
( x - 15 ) : 5=2
( x - 15 ) = 2*5
x - 15 =10
x=10+15
x=25
Vậy.............
\(\left(x-15\right)\div5+20=22\)
\(\Leftrightarrow\left(x-15\right):5=22-20\)
\(\Leftrightarrow\left(x-15\right):5=2\)
\(\Leftrightarrow x-15=2\times5\)
\(\Leftrightarrow x-15=10\)
\(\Leftrightarrow x=10+15\)
\(\Leftrightarrow x=25\)
Vậy \(x=25\)
( x-15) :5+20= 22
(x-15) :5 = 22-20
(x-15): 5 = 2
(x-15) = 2x5
(x-15) =10
x =10+ 15
x = 25
( x - 15 ) : 5 + 20 = 22
( x - 15 ) : 5 = 22 - 20
( x - 15 ) : 5 = 2
x - 15 = 2 x 5
x - 15 = 10
x = 10 + 15
x = 25
x - 32 : 16 = 12
x - 2 = 12
x = 12 + 2
x = 14
Vậy x............
( x -15 ) : 5 + 20 = 22
x - 15 : 5 = 22 - 20
x - 15 : 5 = 2
x - 15 = 2 x 5
x - 15 = 10
x = 10 + 15
x = 25