Tìm y:
76,22 - y x 3 = 61,22
2. Tìm y
a) y : 15 - 34,87 = 52,21 + 6
b) 76,22 - y x 3 = 30,61 x 2
4/ Tìm y
A/ 25,5 + y - 12,5 = 4 x 7
b. 76,22 - y - 25,7 = 30 + 5,52
c. 4,5 - y +1,2 = 3,5
a)\(25,5+y-12,5=4.7\)
⇔\(13+y=28\)
⇔\(y=15\)
b)\(76,22-y-25,7=30+5,52\)
⇔\(50,52-y=35,52\)
⇔\(y=15\)
c)\(4,5-y+1,2=3,5\)
⇔\(5,7-y=3,5\)
⇔\(y=2,2\)
\(a,\Rightarrow10+y=28\\ \Rightarrow y=18\\ b,\Rightarrow50,52-y=35,52\\ \Rightarrow y=15\\ c,\Rightarrow5,7-y=3,5\\ \Rightarrow y=2,2\)
a) \(25,5+y-12,5=4\times7\)
\(\Rightarrow25,5+y-12,5=28\)
\(\Rightarrow y-12,5=28-25,5\)
\(\Rightarrow y-12,5=2,5\)
\(\Rightarrow y=2,5+12,5\)
\(\Rightarrow y=15\)
b) \(76,22-y-25,7=30+5,52\)
\(\Rightarrow76,22-y-25,7=35,52\)
\(\Rightarrow y-25,7=76,22-35,52\)
\(\Rightarrow y-25,7=40,7\)
\(\Rightarrow y=40,7+25,7\)
\(\Rightarrow y=66,4\)
c) \(4,5-y+1,2=3,5\)
\(\Rightarrow4,5-y=3,5-1,2\)
\(\Rightarrow4,5-y=2,3\)
\(\Rightarrow y=4,5-2,3\)
\(\Rightarrow y=2,2\)
76,22 - y x 3 = 30,61 x 2
\(76,22-y\times3=30,61\times2\\ \Rightarrow76,22-y\times3=61,22\\ \Rightarrow y\times3=76,22-61,22\\ \Rightarrow y\times3=15\\ \Rightarrow y=15:3\\ \Rightarrow y=5\)
a) y : 15 - 34,87= 52,21 + 6 b) 76,22 = y x 3 = 30,61 x 2
a) y / 15 - 34,87 = 52,21 + 6
y / 15 - 34,87 = 58,21
y / 15 = 58,21 + 34,87
y / 15 = 93,08
y = 93,08 * 15 = 1396,2
b) 76,22 = y * 3 = 30,61 * 2
76,22 = y * 3 = 61,22
=> 76,22 = 61,22 ( ?! )
Sai đề
a) y : 15 - 34,87= 52,21 + 6 b) 76,22 = y x 3 = 30,61 x 2
a) y : 15 - 34,87 = 52,21 + 6 ( tui biet moi cau a thoi)
y : 15 - 34,87 = 58,21
y : 15 = 58,21 - 34,87
y : 15 = 23.34
y = 351
Trl
-Bạn nguyễn minh thu làm đúng rồi nhé ~!
Hok tốt
nhé bạn
76,22 - y x 3 = 30,61 x 2
Ai giúp mk thì mk cho like nha
__Cảm ưn__
76,22 - y x 3 = 30,61 x 2
76,22 - y x 3 = 61,22
y x 3 = 76,22 - 61,22
y x 3 = 15
y = 15 : 3
y = 5
HT và $$$
76,22 - y x 3 = 61,22
y x 3 = 76,22 -61,22
y x 3 = 15
y = 15 : 3
y = 5
76,22 - y *3 = 30,61 *2
\(\Rightarrow76,22-y\times3=61,22\)
\(\Rightarrow y\times3=76,22-61,22\)
\(\Rightarrow y\times3=15\)
\(\Rightarrow y=15:3\)
\(\Rightarrow y=5\)
76,22 - y *3 = 30,61 *2
76,2 - y *3 = 61,22
y *3= 76,2-61,22
y *3=14,98
y= 14,98 :3
y=4,99
76,22 -y *3= 30,61 *2
chu y dau*la nhan
\(76,22-y\times3=61,22\)
\(y\times3=76,22-61,22\)
\(y\times3=15\)
\(x=15:3\)
\(x=5\)
76,22 - y * 3 = 30,61 * 2
76,22 - y * 3 = 61,21
76,22 - y = 61,22 : 3
76,22 - y = 20/61/150
y = 76,21 - 20/61/150
y = 55/241/300
\(76,22-y\times3=30,61\times2\)
\(\Leftrightarrow\)\(76,22-y\times3=61,22\)
\(\Leftrightarrow\)\(y\times3=76,22-61,22\)
\(\Leftrightarrow\)\(y\times3=15\)
\(\Leftrightarrow\)\(y=15\div3\)
\(\Leftrightarrow\)\(y=5\)
A) y:15-34,87=52,21+6
B)76,22-y×3=30,61×2
y:15 - 34,87=52,21+6
y:15 =52,21+6+34,87
y:15 =93.08
y=1396.2
b) tự làm . tính ra rồi chuyển zế là đc
A) y:15-34,87=52,21+6
<=>y:15-34,87=58,21
<=>y:15=93,08
<=>y=1396,2
Vậy y=1396,2
B)76,22-y×3=30,61×2
<=>76,22-yx3=61,22
<=>yx3=15
<=>y=5
Vậy y=5
a) y:15-34,87=52,21+6
y:15-34,87=58,21
y:15=58,21+34,87
y:15=93,08
y=93,08 x 15
y=1396,2
b) 76,22-y×3=30,61×2
76,22-y x3=61,22
y x 3 = 76,22-61,22
y x 3 = 15
y = 15 : 3
y = 5