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x in (-oo:+oo)
(7*(3/5)*x)/10 = 0
21/50*x = 0 // : 21/50
x = 0
x = 0
| 9x^8=0 | | -198=-6(5x-7) | | 2x^3=204 | | 10x-8y=6 | | -4z^2-64z+52=0 | | 4x-3x+8=1+4x-5 | | m-8+6=-8 | | x/15=12/92 | | 6y+3=30x | | 3m+10=38 | | x(x+18)=26(26+16) | | 3*(2x-4)=6x+10 | | 3/h=12/24 | | 2a=250 | | r^2+6r-25=0 | | 2x-y=33 | | B/4=32 | | 4x-5x=22 | | x-4-3=5 | | 72=0.055r^2 | | p^2-2p-11=0 | | p^2-20-11=0 | | 7(-1-x)=-14 | | d^2-18d+41=0 | | 3/10=15/x | | -7(2-3x)=7 | | 2x/x^2-4 | | y=-(x-3)2 | | t^2+16t-9=0 | | 0.9=0.3m | | -1(x-5)=9 | | 1.25x^2+2x+21=0 |