3t+5=27-t
6u+7=29-5u
22-8x=2x+9
19-4x=2x+1
x- $\frac{2}{3}$ ≥ $\frac{-2x}{3}$ -4
5.5(13.9r - 2.1)
=91.3
$sqt{Bo}$3 ve 5n ve 1
9x8=5+4x8
2(x+3)-3(2x-5)
6.7197 to 2 significant figures