Question

2x+5=120/2

Answer 1

\(x=\left(\dfrac{120}{2}-5\right):2=27.5\)

Answer 2

\(2x+5=\dfrac{120}{2}\)

\(\Leftrightarrow2x+5=60\)

\(\Rightarrow2x=55\)

\(\Rightarrow x=27,5\)

Answer 3

2x + 5 = 120/2

2x + 5 = 60

2x = 60 - 5

2x = 55

x = 55 : 2

x = 27,5

Vậy x = 27,5