$$=2\times5-1\ge14-5; 20-1=9; 9=9; 2.HS.=R.W.s; 8x+4=3(x-1)+7; 2(x-1)+^{2}$$
$\text{true}$
$$10-1\geq 14-5$$
$$9\geq 14-5$$
$$9\geq 9$$
$$\text{true}$$
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