If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-9=28y
We move all terms to the left:
-9-(28y)=0
We move all terms containing y to the left, all other terms to the right
-28y=9
y=9/-28
y=-9/28
| 409=223+z= | | -7-2u=17 | | -3(1-5n)=5n+37 | | 5x+4(3x)=68 | | 51=2x+7 | | -x/4+5=7/3 | | 2(3x-2)=-3(x-2)+4x | | -12=-4-w | | -9=28=y | | 5/7=6/14-1/7m | | 45=-5d | | 2u+-7=17 | | p-12/6=-4 | | 12.5=1/2x | | .879=x/6 | | -84=-4(6+3x) | | 12.5=1/2g | | -2(3m-3)=18 | | 12x−18=58 | | -9+12x=5x+19 | | -18+y=20 | | 5(y-12)=-10 | | x+6=67.50 | | 2e-3=189 | | 2(x+50)=-3x-13+4x | | 57=-5(3–2p) | | d/–29=–12 | | s+19=41 | | 6+x=67.50 | | 1/x=19-1 | | 8.7v+9.9v+7.03=9.7v-9.88 | | .313=x/200 |