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)
-5.1 = w/4+7.7 // - w/4+7.7
-(w/4)-7.7-5.1 = 0
-1/4*w-12.8 = 0 // + 12.8
-1/4*w = 12.8 // : -1/4
w = 12.8/(-1/4)
w = -51.2
w = -51.2
| x^0+4x+20=180 | | 4.7a-3=-12.4 | | v^2+3=19 | | 4(v-6)-4=-2(-9v+5)-2v | | 4.7a-3=12.4 | | 4x-16=80 | | 3z+12=7z | | 3v-22=-2(v-4) | | -2w+7=9w-4 | | -1/9x-12=-3 | | 5x+9=4x^2-36x+81 | | k^2+14k+5=0 | | a/4q-7=8 | | 12r-32=10r+8 | | 1/3x+5=7 | | 2(2m-3)=6(6m+2) | | 1/3x+7=-27 | | 5+11=4+18 | | 1+x/2=-4.12 | | 1/3x+4=88 | | 4/9a-2/9=6 | | 8w=-32+4 | | 2(2m-3)=6(m+2) | | k^2+2k+5=0 | | 11+2x=3x-7 | | 5x+6=4x^2-48x+144 | | 13x-6x=42 | | 5/8c+1/2=15/16c-1/4 | | 7-13x=-19 | | -h/-4=42 | | 3y=12-(6y-6) | | 4.2=-6w+42.6 |