Question

45.(x+2)=-3

Answer 1

=>x+2=-1/15

hay x=-31/15

Answer 2

\(45\left(x+2\right)=-3\\ \Rightarrow x+2=\dfrac{-1}{15}\\ \Rightarrow x=-\dfrac{1}{15}-2\\ \Rightarrow x=-\dfrac{31}{15}\)

Answer 3

45x+90=-3

45x=-3-90

45x=-93

x=-\(\dfrac{-93}{45}\)

x=\(\dfrac{-31}{15}\)

Answer 4

45.(x+2)=-3

=>45x+90=-3

=>45x=-3-90

=>45x=-93

=>x\(\left\{{}\begin{matrix}x=\dfrac{-93}{45}\\x=\dfrac{-31}{15}\end{matrix}\right.\)

Answer 5

 đề sai