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20/45 = 12/x
sin(pi)
sin(0)
(sin(2))^0
sin(2)-pi
| 20/45=12/x | | 9x+29=2x+155 | | (12x+4)=42 | | -2(-6x+1)-9x=40 | | 8y-9y+7y=0 | | 0.09Xx=97.33 | | (x^2+4x)(x^2+5x)= | | 7y+1=7 | | 7x^2+6x+7=0 | | 5x+3x+2x=0 | | (3w-7)(5w-8)= | | (3a-7)(5w-8)= | | 8/x=4/15 | | 9/4÷18/7 | | X*7/8 | | 0.19x+0.5(x-4)=0.01(2x-1) | | 18/x=12/28 | | 0.09Xx=105.53 | | -x^5=8 | | 4a+b=45 | | 4(5x-4)=104 | | 3a-6=-18 | | 32+x+43=180 | | 54x^2-87+35=0 | | (5-y)(3y+8)=0 | | 4a+b=27 | | 2.5x+3.75=15 | | 9ab-6a+5b-3= | | b+9+6b-9= | | 3x+11=-7+x | | 3sinx=-1.2 | | 22=7.34+b |