Question

inecuación: 4 ( 1 - x ) + 2 ( 2 - x ) ≥ 5 - 7 ( x - 5)

Answer 1

Resolver.

4(1 - x) + 2( 2 - x) ≥ 5 - 7(x - 5)
4 - 4x + 4 - 2x ≥ 5 - 7x + 35
8 - 6x ≥ 40 - 7x
7x - 6x ≥ 40 - 8
x ≥ 32
                                                                 [xxxxxxxxxxxxxxxxxxxxxxxx
<------------------------------------------------------¡-------------------------------------->
                                                                32

Solución:
x ∈ [ 32 , Infinito)