Question

1) rezolvati in R inecuatia: a) 2(1-x)≥4(3w+2) b) 2-3(x+2)≤5-2x

Answer 1

a)2(1-x)≥4(3x+2)=>2-2x≥12x+8 =>-14x≥6=>x≤-6\14=>x≤-3\7 b) 2-3(x+2)≤5-2x=>2-3x-6≤5-2x=>-4-3x≤5-2x=>-x≤1=>x≥-1