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x in (-oo:+oo)
-5 = 2*x-4*x-5 // - 2*x-4*x-5
5-(-4*x)-(2*x)-5 = 0
4*x-2*x-5+5 = 0
2*x = 0 // : 2
x = 0
x = 0
| 7w+9-w=3 | | 7w+6+6w=6 | | 82=-5n-5n+2 | | 3-3w+2w=0 | | -51=7k-k-9 | | 2x+6+x=-27 | | 10+5t-3t=32 | | -9+a+6a=68 | | 3x+3-4x=6 | | -12=a+2a+6 | | -4+2w+6w=-52 | | a+4-2a=14 | | 2b-4-6b=20 | | -6t+2+3t=-7 | | -4d+6+d=-18 | | m+4+2m=10 | | 7+4a+7a=95 | | 10+x-6x=10 | | -88=3k+6k+2 | | 10=6a-3a-5 | | 50=4d+2d-10 | | 2d+1+2d=-27 | | 3t+7+6t=70 | | -7+5m+7m=29 | | 7t-2+2t=88 | | -5n-8+2n=-8 | | -1-4x+5x=0 | | 2d+4+d=25 | | 64=7b+2b-8 | | 2b-6+3b=24 | | 8+3b+2b=-2 | | 2d+1+4d=37 |