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a in (-oo:+oo)
-7 = a+3 // - a+3
-a-7-3 = 0
-a-10 = 0 // + 10
-a = 10 // * -1
a = -10
a = -10
| 4+m=-2 | | m+10=20 | | m/-5=-6 | | -6=w-6 | | 1/x+1/5x=6/25 | | t/-5=-2 | | 29=4+5x | | 7+n=10 | | k+8=10 | | 2+b=0 | | m+7=5 | | -5=b+5 | | 3k=36 | | n+1=11 | | t-1=-13 | | w+10=15 | | n+1=-7 | | -6t=18 | | 5=w+5 | | -2a=-24 | | 12x=log(1.4) | | -2=w+1 | | 8=n+1 | | 12x=ln(1.4) | | 5d=40 | | -5+n=-4 | | -9+t=-9 | | b+2=10 | | 7d=-84 | | 13x=ln(1.5) | | a+5=6 | | m/-5=4 |