Question

2x – 3 – 3.2x = – 92.

Answer 1

\(2x-3-3\cdot2x=-92\\\Rightarrow2x-3-6x=-92\\\Rightarrow2x-6x=-92+3\\\Rightarrow-4x=-89\\\Rightarrow x=-89:(-4)\\\Rightarrow x=\dfrac{89}{4}\)

Answer 2

2x – 3 – 3.2x = – 92.

2x-3-6x          =-92

2x-6x             =(-92)-3

2x-6x             =-89

-4x                 =-89

x                    =(-89):(-4)

x                    =22.25

vậy x=22.25