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z in (-oo:+oo)
(13*z)/13 = 0
z = 0
z = 0
| 2x-5(x+4)=22 | | -4x+8=12-5 | | 3+6h-h-8h+6= | | -7p-6p=0 | | 245=98t-4.9t^2 | | .002+e^2n= | | 6t+5+t=47 | | (5)(-5)-(16)= | | 300-7[4(3+5)]= | | 3x+90=x | | 36x^2-5=66 | | 4a+10.75(7a+2)= | | 5(3x-2)=4(7x+6) | | E^2n= | | (5)(-5)-(-16)= | | 1.33b+.5=2.5 | | 3x+24=290 | | -2(2a-8)=2(8a-2) | | 1/2-7/2z=5/2 | | 7n-7n= | | 18x=-26 | | 3x+2(x-1)=3x+4 | | 4-7p-p-6p-2= | | 3pi/5/2pi | | 8-5g=-7 | | 56=4x-8 | | 8.6+1.5=x+17.7 | | (5)(-5)-(-4)= | | -2x-8=-7x+6x | | (6x+9)=(3x+5) | | 2.5x+15=22.3 | | Pfk-1=m |