If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-9y-9=-10y-9
We move all terms to the left:
-9y-9-(-10y-9)=0
We get rid of parentheses
-9y+10y+9-9=0
We add all the numbers together, and all the variables
y=0
| -10+4d=2d | | x-3-20=-25 | | -4q-8=-3q | | 48=2(f−35)(35-f)2=48 | | 48=2(f−35) | | 4x+100=6x | | 12x3/4=9 | | 4x-100=6x | | y=-0.5(42)-18 | | 2^(x+3)=3^(2x-1) | | 2x-15/6=5/12 | | (1/x)-1=0 | | 144=-12(i+5) | | -9i+1=-80 | | 2/3x-3/5=8 | | 6x+2(x-5)=8 | | -3/5d=18 | | 10.35=n,4.5 | | 5x+7=x+134 | | 4w=2,3 | | -2-2(16t+9)=-20+11t-11t | | 4y–14=–18 | | 801.15=49(x+2.35) | | 9^x+4=15 | | x-(x*0.07)=350 | | 5v^2-4=10 | | 60-2x=38x | | 99=9(m+3.7) | | x-0.07x=350 | | (2x+15)*2=(6x-37) | | 2.ª+3b=16.A+2b | | 9-0.25x=2x |