If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21y=84
We move all terms to the left:
21y-(84)=0
We move all terms containing y to the left, all other terms to the right
21y=84
y=84/21
y=4
| -35+15x=-20+1x | | Y=-4.6x+96 | | -8(-2x-3)=6x | | 3/5w=-12/5 | | 8+6n+4=6 | | 6=(x-3)(2x-4) | | 6x4=(3x4)+(3x4) | | 2(5x+3)-1=25 | | 3h-1.99=55.99 | | 2(x+2)+3x=2(x+1)+10 | | 12=18-3n | | 5x+12=-35 | | 5a−5=7+a | | 2(2x+2)+3x=2(x+1)+10 | | 5.8=n-0.35= | | 2(2x+2)+3x=2(x+1)10 | | 3h=55.99 | | N-6=2+5n | | 3h=5.99 | | x+9+2x+6=18 | | 108=-4(-5n+7) | | 32.4=x+12.6 | | 4c=5c-28 | | 7n+2=93 | | Y=6x^2+72x+192 | | 1/2(a-10)=10 | | 1/8+x=5/4 | | 3+h/1.99=55.99 | | Y-4=1/2(x+4) | | 6x-4=51+x | | 126=-7n-(-7) | | 2x^2-15x+14=14 |