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(3*x-7)^-1
x/8 = 89/10
(-4/7)*y = -2
(x^2)/3-((4*x^1)/3)-12 = 0
3.14*(4/3)*r^3 = 0
| 10(n-6)=80 | | 56+18=x+x | | 3(4z-1)-5(z+9)=3(z+1) | | 9x-61=3x+35 | | 2x+5-3(2x-7)=2(3x-5)-5 | | m+m^2+5=5+m+m^2 | | 11x-16=12x+14 | | 10x-40=1x-4 | | B=-3+2b | | x+17x=90 | | 75=-3(-6x-5) | | X=2cos | | 5xy+35x+7y+49= | | 12-2(3x-4)=2 | | 3x=3+27 | | -86+8x=152-9x | | 72x=168+24x | | -5(p+4)=3(p-2)-8p | | 8+0.40m=10 | | 12-3(8+4)=2 | | x/8=89/10 | | (9x^2)=55x+56 | | 213x+2x^2=2000 | | x^2+y^2+6y-7=0 | | (9x^2)=55x+6 | | -4/7y=-2 | | (3+m)5=5(3+m) | | -v^2-3v+54= | | B+9=2b+6 | | 63=t^2-2t | | m+2+2m+3=5+3m | | (x^2/3)-(4x^1/3)-12=0 |