Question

a) |x+1|=7
b) |2x-1|=-1
c)|2x+1|= 0​

Answer 1

Răspuns:

x+1=7

x=7-1

x=6

2x-1=-1

2x=-1+1

2x=0

x=0/2

x=0

2x+1=0

2x=0+1

2x=1

x=1/2

sper ca te-am ajutat!

Answer 2

a) |x+1|=7
=> cazul 1:
x+1=7 => x=6
cazul 2:
x+1=-7=> x=-8
b) |2x-1|=-1, dar |2x-1| este intotdeauna > 0
=> nu exista solutii
c) |2x-1|=0
=> 2x-1=0
=> 2x=1
=> x=1/2