Question

Tìm y: 13 x (y - 6) = 4 x y - 6

Answer 1

\(13\cdot\left(y-6\right)=4\cdot y-6\)

\(\Rightarrow13y-78=4y-6\)

\(\Rightarrow13y-4y=78-6\)

\(\Rightarrow9y=72\)

\(\Rightarrow y=\frac{72}{9}=8\)

Vậy y = 8 

Answer 2

\(13\times\left(y-6\right)=4\times y-6\)

\(\Rightarrow13\times y-78=4\times y-6\)

\(\Rightarrow13\times y-4\times y=\left(-6\right)+78\)

\(\Rightarrow9\times y=72\)

\(\Rightarrow y=72:9\)

\(\Rightarrow y=8\)

~ Hok tốt ~

Answer 3

Làm sao ra 78 ạ

Answer 4

Ta có :

13 x (y - 6) = 4 x y - 6

=> 13 x y - 13 x 6 = 4y - 6

=> 13y - 78 = 4y - 6

=> 13y - 4y = 78 - 6

=> y x (13 - 4) = 72

=> y x 9 = 72

=> y = 72 : 9

=> y = 8

~Study well~

#๖ۣۜNamiko#

Answer 5

A e biết rồi

Answer 6

13 x (y - 6) = 13 x y - 13 x 6 = 13 x y - 78 nha  

Answer 7

y là 8

hok tốt

Answer 8

13 x ( y - 6 ) = 4 x y - 6

13 x y - 78 = 4 x y - 6

13 x y - 4 x y = 78 - 6

9 x y = 72

y = 72 : 9

y = 8