If it's not what You are looking for type in the equation solver your own equation and let us solve it.
w in (-oo:+oo)
w+7 = 12 // - 12
w-12+7 = 0
w-5 = 0 // + 5
w = 5
w = 5
| -8+w=-4 | | 2=b+9 | | 1=t-5 | | -6a=-60 | | 9+t=4 | | (2x+10)+(2x-10)+(y+20)=180 | | -4=t+3 | | a+4=12 | | 4+b=4 | | -16=m-5 | | b+6=-3 | | 2n^2+4n-36=0 | | 9=w+5 | | k/-4=-1 | | a-9=-2 | | 2x+10+2x-10+y+20=180 | | x-7y=-75 | | -7+m=-14 | | n/-6=4 | | 2x^3+24x-4cos(3.14/2)x | | 6/x=42 | | -9=n-9 | | d+8=-2 | | b/2=-6 | | x-7=-34 | | 6+9x=51 | | 28+x=160 | | 3+a=8 | | d+10=6 | | w-7=4 | | d-1=-1 | | w+1=9 |