Question

Tim x ,biet :100:2 nhan {x+1]=25

Answer 1

50 x {x+1} = 25

{x+1} = 50 : 2

{x+1} = 2

x = 2-1=1

Answer 2

\(\frac{100}{2}\left(x+1\right)=25\)

\(=>50\left(x+1\right)=25\)

\(=>x+1=\frac{25}{50}\)

\(=>x+1=\frac{1}{2}\)

\(=>x=\frac{1}{2}-1\)

\(=>x=-\frac{1}{2}\)

Answer 3

100 : 2 . ( x + 1 ) = 25

=> 50 . ( x + 1 ) = 25

=> x + 1 = 25 : 50

=> x + 1 = 0,5

=> x = 0,5 - 1

=> x = - 0,5

Vậy x = - 0,5