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x in (-oo:+oo)
(2/3)*x < -18 // + 18
(2/3)*x+18 < 0
2/3*x+18 < 0 // - 18
2/3*x < -18 // : 2/3
x < -18/2/3
x < -27
x in (-oo:-27)
(-oo:-27)
| 2x-2+6x=-4+8 | | 32=z-9 | | 6+2n=30 | | 0y+5=10+2x | | 4.03=a-3.25 | | .0003x^2+.1x+10=67 | | 84/14= | | 343n^2-63=0 | | 84/14 | | 18a-2ay+48b-64by=0 | | 100=4t | | 3w-17=25 | | (t+10.5)2t=180 | | N=9+(N-1)2 | | log*5(6x+-6)=3 | | x^2+5x+-30=0 | | X-3/210 | | y-4=5(x-3) | | -2.5=x-1.7 | | 6+1.5x=0+2x | | X+2x+6x=25 | | 343n^2=63 | | 3.5*4+2y=120 | | -n/6-22-27 | | 9*7/3 | | x+3.5x+10=37 | | 6+1.5=2x+0 | | 8=2p-4 | | 6+1.5x=2+0 | | 10n^2-17n-20=0 | | 3(a+1)+4a= | | h-19.2=24 |