Question

Tìm x bt

\(\left(5\right)^2\)-(5x-3)=43

 

Answer 1

\(5^2-\left(5x-3\right)=43\)

\(\Leftrightarrow25-5x+3=43\)

\(\Leftrightarrow5x=-15\)

\(\Leftrightarrow x=-3\)

Answer 2

5² - (5x-3) = 43 

=> 5² - 5x +3 = 43 

=> 5.5-5x = 43 -3 

=> 5.(5-x) = 40 

=> 5-x = 8 

=> x = 5-8 

=> x =( -3 )

Vậy x = (-3)

Answer 3

\(5^2\)\(-\left(5x-3\right)=43\)

⇒ 25 - 5x + 3 = 43

⇒ 28 - 5x = 43

⇒ 5x = -15

⇒ x = -3 

Vậy x= -3