Nhầm, làm lại nhé!

\(\frac{x}{13}+\frac{15}{26}=\frac{46}{52}\)

\(\frac{x}{13}+\frac{15}{26}=\frac{23}{26}\)

\(\frac{x}{13}=\frac{23}{26}-\frac{15}{26}\)

\(\frac{x}{13}=\frac{23}{26}-\frac{15}{26}\)

\(\frac{x}{13}=\frac{4}{13}\)

\(\Rightarrow x=\frac{13.4}{13}=4\)

Vậy \(x=4\)

X= 4 phải ko mọi người

ko phải

Vậy = bao nhiêu

\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)

\(\frac{x}{16}=\frac{46}{52}-\frac{15}{26}\)

\(\frac{x}{16}=\frac{1}{4}\)

4 : 1 = 4

Suy ra x = 4

HkT~

#Wind

x = 16

HT

X=4

✓cho mình nha

15/26 + x/16 = 46/52

               x/16 = 46/52 - 15/26

               x/16  = 1/4

              x/16   = 4/16

Suy ra: x = 4

Vậy x = 4

\(\frac{15}{26}+\frac{x}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{16}=\frac{45}{52}-\frac{15}{26}\)

\(\Rightarrow\frac{x}{16}=\frac{4}{13}\Rightarrow\frac{64}{208}=\frac{x}{16}=\frac{64}{208}=\frac{x}{208}\Rightarrow x=64\)

\(\frac{x}{13}:\frac{15}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{13}=\frac{46}{52}\cdot\frac{15}{16}=\frac{23}{26}\cdot\frac{15}{16}\)

\(\Rightarrow\frac{x}{13}=\frac{345}{416}\)

\(\Rightarrow x=\frac{345}{416}\cdot13=\frac{345}{32}\)

Vậy \(x=\frac{345}{32}\)

K MK ĐI. ~ HỌC TỐT NHA ~

\(\frac{x}{13}:\frac{15}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{13}:\frac{15}{16}=\frac{23}{26}\)

\(\Rightarrow\frac{x}{13}=\frac{23}{26}\times\frac{15}{16}\)

\(\Rightarrow\frac{x}{13}=\frac{345}{416}\)

\(\Leftrightarrow416\times x=13\times345\)

\(\Rightarrow416\times x=4485\)

\(\Rightarrow x=4485:416\)

\(\Rightarrow x=\frac{345}{32}\)

\(\frac{x}{13}\div\frac{15}{16}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{13}\div\frac{15}{16}=\frac{23}{26}\)

\(\Rightarrow x\div13=\frac{345}{416}\)

\(\Rightarrow x=\frac{345}{52}\)

~Study well~

#Thạc_Trân

15 x 98 - 15 x 46 - 52 x 25

= 15 x (98 - 46) - 52 x 25

= 15 x 52 - 52 x 25

= (15 - 25) x 52

= -10 x 25 = -250

      \(15\times98-15\times46-52\times25\)

\(=15\times\left(98-46\right)-52\times25\)

\(=15\times52-52\times25\)

\(=52\times\left(15-25\right)\)

\(=52\times\left(-10\right)\)

\(=-520\)

uingr hộ mk nha mọi người

Tính nhanh  : 

15 × 98 - 15 × 46 - 52 × 25 

= 15 × ( 98 - 46 ) × 52 - 25 

= 15 × 52 × 52 - 25 

= 52 × ( 15 - 25 )

= 52 × ( - 10 )

= - 520

A) x/13+15/26=46/52

x/13+15/26=23/26

x/13=23/26-15/26

x/13=4/13

x=4

7/3:5/1=14/15

\(\frac{15}{16}+\frac{x}{13}=\frac{46}{52}\)

\(\Rightarrow\frac{x}{13}=\frac{46}{52}-\frac{15}{16}\)

\(\Rightarrow\frac{x}{13}=\frac{-11}{208}\)

\(\Rightarrow x=\frac{\left(-11\right).13}{208}\)

\(\Rightarrow x=\frac{-11}{16}\)

Vậy x = \(\frac{-11}{16}\)

_Chúc bạn học tốt_

đáp án

x = -11/16

hok tốt ^.^

\(\frac{15}{16}\)\(+\)\(\frac{x}{13}\)\(=\)\(\frac{46}{52}\)

\(\frac{x}{13}\)\(=\)\(\frac{46}{52}\)\(-\)\(\frac{15}{16}\)

\(\frac{x}{13}\)\(=\)\(-\frac{11}{208}\)

x/13+15/26=46/52

=> x/13= 46/52-15/26

=> x/13=4/13

=> x=4

x/3 + 15/26 = 46/52

x/13 + 15/26 = 23/26

x/13 = 23/26 - 15/26

x/13 = 4/13

Có x/13 = 4/13

Suy ra : x = 4

Vậy x = 4

x/13 + 15/26 = 46/52

x/13              = 46/52 - 15/26

x/13              =       4/13

=> x = 4

day la cach lam don gian va de hieu nhat