Question

2(x+3)-x<4-5x
-2(5-2x)=x

Answer 1

Răspuns:

Explicație pas cu pas:

a)2(x+3)-x<4-5x

2x+6-x<4-5x

2x-x+5x<4-6

6x<-2 |impartim la 6

->>>>>

x<$\frac{-1}{3}$ -->>x∈(-∞,$\frac{-1}{3}$)

b)-2(5-2x)=x ->-10+4x=x =>-10=x-4x ->-10=-3x |*(-1)

3x=10 ->x=$\frac{10}{3}$

Answer 2

2(x + 3) - x < 4 - 5x

2x + 6 - x < 4 - 5x

2x - x + 5x < 4 - 6

6x < - 2

x < - 1/3

x ∈ (-oo, - 1/3)

- 2(5 - 2x) = x

- 10 + 4x = x

4x - x = 10

3x = 10

x = 10/3