Question

45 + 5 . ( x- 3 ) = 70

Answer 1

45 + 5 . ( x- 3 ) = 70

5 . ( x- 3 ) = 70 - 45

5 . ( x- 3 ) = 15

x- 3 = 15 : 5

x- 3 = 3

x = 3 + 3

x = 6

Answer 2

ớ chết cái vừa nãy tính sai nhá

45 + 5 . ( x- 3 ) = 70

5 . ( x- 3 ) = 70 - 45

5 . ( x- 3 ) = 25

x- 3 = 25 : 5

x- 3 = 5

x = 5 + 3

x = 8

Answer 3

45 + 5 . (x-3) = 70

5 . (x-3) = 70-45

5. (x-3) = 25

x - 3 = 25:5

x - 3 = 5

x = 5 + 3

x = 8

Answer 4

\(45+5\left(x-3\right)=70\)

\(\Rightarrow5\left(x-3\right)=70-45\)

\(\Rightarrow5\left(x-3\right)=25\)

\(\Rightarrow x-3=25\div5\)

\(\Rightarrow x-3=5\)

\(\Rightarrow x=5+3\)

\(\Rightarrow x=8\)

Vậy \(x=8\)