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k in (-oo:+oo)
k/2 = 0
1/2*k = 0 // : 1/2
k = 0
k = 0
| x+1=69 | | (x^2/4)-4x | | 0.2x+x=30 | | 14d-26+5d=12d-8 | | (x2/4)-4x | | 7x+10=73 | | 45+135+3x+45+135+x=720 | | 8x+12+2x+38=180 | | 1/2(1)+y=5 | | 8x+12+2x+38=190 | | 18y+42=12y | | 8x+12+2x+38=x | | -4c+4d-3c+10-7d= | | 44(z+12)=325 | | -(8y+4)-(-7y-6)=-3 | | 8+c/3=-20 | | (16/9)^-3/2 | | 4a+5b-a-b= | | y+20=y-14 | | 10(y+1)+4=3y+7 | | M/3+4=36 | | x^2-16/x^2-10x+25 | | m^3+5x^2-x+7=0 | | 5a+2b-4a-b+3a= | | 3x+10=160 | | 2b=12 | | 2(2g-5)=4(1-9) | | b/2-b-4/4=7/4 | | 120/5=x | | 5y-5x/15y^3 | | 120/5= | | 5w^3=17 |