Bài giải :
a, ( 3 - y ) x 15 = 0
3 - y = 0 : 15
3 - y = 0
y = 3 - 0
y = 3
Các ý khác tương tự
b, 13 x ( y - 10 ) = 13
y - 10 = 13 : 13
y - 10 = 1
y = 1 + 10
y = 11
a, ( 3 - y ) x 15 = 0
3 - y = 0 : 15
3 - y = 0
y = 3 - 0
y = 3
b, 13 x ( y - 10 ) = 13
y - 10 = 13 : 13
y - 10 = 1
y = 1 + 10
y = 11
a) ( 3-y ) x 15 = 0
3 - y = 0 : 15
3 - y = 0
y = 3 - 0
y = 3
Vậy với ( 3-y ) x 15 = 0 thì y = 3
b) 13 x ( y - 10 ) = 13
y - 10 = 13 : 13
y - 10 = 1
y = 1 + 10
y = 11
Vậy với 13 x ( y - 10 ) = 13 thì y = 11
c) (2y - 4 ) x ( y - 5 ) = 0
( 2y - 4 ) x y - ( 2y - 4 ) x 5 = 0
y - 5 = 0
y = 0 + 5
y = 5
Vậy với (2y - 4 ) x ( y - 5 ) = 0 thì y = 5
a) ( 3 - y ) × 15 = 0
3 - y = 0 ÷ 15
3 - y = 0
y = 3
Vậy y = 3
b) 13 × ( y - 10 ) = 13
y - 10 = 13 ÷ 13
y - 10 = 1
y = 11
Vậy y = 11
c) ( 2y - 4 ) × ( y - 5 ) = 0
=> 2y - 4 = 0 (h) y - 5 = 0
2y = 4 y = 0 + 5
y = 4 ÷ 2 y = 5
y = 2
Vậy y = 2 ; y = 5
a) ( 3 - y ) x 15 = 0
3 - y = 0 : 15
3 - y = 0
y = 3 - 0
y = 3
b) 13 x ( y - 10 ) = 13
y - 10 = 13 : 13
y - 10 = 1
y = 1 + 10
y = 11
c) ( 2y - 4 ) x ( y - 5 ) = 0
=> 2y - 4 = 0
=> 2y = 0 + 4 = 4
=> y = 4 : 2 = 2
y - 5 = 0
=> y = 0 + 5 = 5
Vậy y = 2,5
Bài giải :
a, ( 3 - y ) x 15 = 0
3 - y = 0 : 15
3 - y = 0
y = 3 - 0
y = 3
b, 13 x ( y - 10 ) = 13
y - 10 = 13 : 13
y - 10 = 1
y = 1 + 10
y = 11