21:[yx3}+4+88=100
x-712=23; yx3+y=100-88
x+y=?
21:(y+3)×4+88=100
21 : (y+3)x4=100-88
21:(y+3)x4=12
21:(y+3)=12 :4
21:(y+3)=3
y+3=21:3
y+3=7
y=7-3
y=4
Đáp số y=4
\(21:\left(y+3\right)\times4+88=100\)
\(21:\left(y+3\right)\times4=100-88\)
\(21:\left(y+3\right)\times4=12\)
\(21:\left(y+3\right)=12:4\)
\(21:\left(y+3\right)=3\)
\(y+3=21:3\)
\(y+3=7\)
\(y=7-3\)
\(y=4\)
21 : ( y + 3 ) x 4 + 88 = 100
21 : ( y + 3 ) x 4 = 100 - 88
21 : ( y : 3 ) x 4 = 12
21 : ( y : 3 ) = 12 : 4
21 : ( y : 3 ) = 3
y + 3 = 21 : 3
y + 3 = 7
y = 7 - 3
y = 4
21 : (y + 3) x 4 + 88 = 100 giúp tôi giải bài toán này nhé cám ơn các bạn có lời giải nhé
21:(y+3)x4=100-88
21:(y+3)x4=12
21:(y+3)=3
Y+3=7
y=4
21 : (y + 3) x4=100-88
21 : (y + 3) x4=12
21 : (y + 3)=12:4
21: (y + 3)=3
y + 3=21 : 3
y + 3=7
y=7 - 3
y=4
21 : (y + 3) x4=100-88
21 : (y + 3) x4=12
21 : (y + 3)=12:4
21: (y + 3)=3
y + 3=21 : 3
y + 3=7
y=7 - 3
y=4 LIKE NHA
B)21:(y+3)x4+88=100
21:(y+3)x4+88=100
21:(y+3)x4 =100-88
21:(y+3)x4 = 12
21:(y+3) =12:4
21:(y+3) =3
y+3 = 21:3
y+3 =7
y =7-3
y =4
Vậy y = 4
Tim y
a,( 372 + 300 ) : ( y x 3 ) = 8
b,21 : ( y + 3 ) x 4 + 88 = 100
a, ( 372 + 300 ) : ( y x 3 ) = 8
672 : ( y x 3 ) = 8
y x 3 = 672 : 8
y x 3 = 84
y = 84 : 3
y = 28
b, 21 : ( y + 3 ) x 4 + 88 = 100
21 : ( y + 3 ) x 4 = 100 - 88
21 : ( y+3)x4 = 12
21 : ( y + 3 ) = 12 : 4
21 : ( y + 3 ) = 3
y + 3 = 21 : 3
y + 3 = 7
y = 7 - 3
y = 4
a) (372+300): (y x 3) =8
=> 672:8 = y x 3
=> 84 = y x 3
=> 84/3 = y
=> y = 28
b) 21:(y+3)x4 + 88 =100
=> 21: ( y+3) x 4=100-88
=>21 : (y+3) x 4 =12
=>21 : ( y+3 )=12/4
=>21 : (y+3)=3
=> 21/3=y+3
=>7=y+3
=>y=7-3
=>y=4
GIẢI HỘ MIK BÀI NÉ ( MIK XIN ĐÓ ) Đ VÀ RÕ RÀNG RA NHÉ
BÀI 1 : RÚT GỌN RỒI TÍNH :
a) 78/42 - 4/7 ; 100/110 - 56/88 ; 75/35 - 11/7 + 21/49 ; 99/72 - 15/40 - 1212 / 1616
a: 78/42-4/7=13/7-4/7=9/7
100/110-56/88=10/11-7/11=3/11
75/35-11/7+21/49=15/7-11/7+3/7=7/7=1
99/72-15/40-1212/1616=11/8-3/8-3/4=1-3/4=1/4
yx2+50+yx3=100
giai ra nha
lm dung mh tick cho
yx2+50+yx3=100
yx(2+3)+50=100
yx5=100-50
yx5=50
y=50:5
y=10
Bài 4 tìm y
Yx3=246-12
Y:3+5=215
yx3=246-12
yx3=234
y=234:3
y=78
y:3+5=215
y:3=215-5
y:3=210
y=210x3
y=630
y x 3= 246 - 12
3y= 246 -12
3y= 234 = 78
y= 78
+) \(Y\times3=246-12\)
\(Y\times3=234\)
\(Y=78\)
+) \(Y:3+5=215\)
\(Y:3=210\)
\(Y=630\)
tìm y
yx3 1/2=4 3/4
y:2 2/3=4 1/3