Question

sa se rezolve ecuatiile:
a.) [$\frac{x+1}{2}$]=5
b.) |2x+1|=6
prima e partea intreaga,iar a doua e cu modul.Mersi!

Answer 1

a)

(x+1)/2=5

x+1=10

x=10-1

x=9;

b)

|2x+1|=6

Deci avem:

2x+1=6

2x+1=-6

2x=6-1

2x=-6-1

2x=5

2x=-7

x₂=5/2

x₁=-7/2.

Bafta!