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a-b-3;c-d-5;a+c-3;(3-a)^2+(-c-1)^2-(3-b)^2-(-d-1)^2
18/17604
17604/18
1/((x-1)^(1/2))
(2/8)/(2/7)
| 2-10x-8x+2= | | 6sin(t)-3cos(t)=0 | | 15w=14 | | 2*3x+1-x=17 | | 6sint-3cost=0 | | 34-7x=146 | | 10-2x=x-5 | | -8x-53=59 | | 4k(2-20)=216 | | 6u+9v-6(9u-8v)= | | 1/5(1-4x)7 | | 1.4x+2.2=2.6x-0.2 | | 9/10n=-1 | | -0.5x=60 | | 75.27=3.14*r^2 | | 7x-18=6x+2 | | 5x+4=3x+17 | | 6.2h+3.1=5.2h | | -2(3x-6)=72 | | 36x^4-60x^2y^3+25y^6= | | 3e=8.4 | | 6s+-3+(s+7)+7s+-12= | | -2(x+1)=10x | | 2b+b+5b=18324 | | -7x+8=3x-12 | | Y=80+(-1.2)x | | -7+8=3x-12 | | -(-2r+4s)= | | F(x)=-5x^2-8x | | X^2+7x+6=(x+6) | | 10x+25=5+12x | | 2d-15.8=3.7+d |