Question

{2} inclus {x|x apartine N, 3x+6<2x+8}​

Answer 1

$M=\left\{x\:|\:x\:\in\:\mathbb{N} \: ,3x+6<2x+8\right\}$

$3x + 6 < 2x + 8$

$3x - 2x < 8 - 6$

$x < 2$

$x\:\in\:\mathbb{N}=>x \: \in \: \left\{0,1\right\}= > M=\left\{0,1\right\}$

$= >\left\{2\right\} \not \subset\left\{0,1\right\} = > \left\{2\right\} \not \subset \: M$