If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
a-2 = -9 // + 9
a-2+9 = 0
a+7 = 0 // - 7
a = -7
a = -7
| 9-12+6= | | 2v+10=28 | | x/-5=-3 | | -5=x+5 | | a/7=-4 | | -7n=-21 | | b/-4=-5 | | 16+12-20= | | 2y+6=6y-18 | | 6x+8=-3x+-10 | | -3(-x-4)-17=-9(x+0) | | d+7=-4 | | w-9=-16 | | a-9=-6 | | 2*1*1+6*1-5= | | n+3=9 | | -10+b=-1 | | (x-1)/3-(x-1)/2=6 | | w/3=7 | | n+9=16 | | 3+n=1 | | t-4=-6 | | 5=k+1 | | 6+d=17 | | 6x+8=-3+-10 | | 3+t=0 | | k/-7=5 | | 20=n+8 | | -2a=6 | | 10=b+1 | | t-5=-16 | | -2b=12 |