If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4a+4a+a-4a=20
We move all terms to the left:
4a+4a+a-4a-(20)=0
We add all the numbers together, and all the variables
5a-20=0
We move all terms containing a to the left, all other terms to the right
5a=20
a=20/5
a=4
| 2.3^x+1=49 | | 6(x+7)=6x+20 | | y=3-1/2 | | (8x-14)=(2x+54 | | 11d-10d=20 | | s^2+5s-4=0 | | 13x+-6x+-9x=16 | | 6x+x=3x+9 | | .5n–12=–3n+4 | | 8r+4=19+3r | | 2(x+3)-x=5+4x | | 17=5-6r+3r | | (6x+42)=90 | | 20x-19-20x=4 | | 1/2x-16=47 | | 121=(4x+2)+(3x-7) | | 2a+-6a+5a=15 | | -6(2x-5)+7(1-6x)=37 | | 3(y+3)=6(2y-4)-3 | | 19h+17h-19h-5h+-13h=5 | | 2(x-1)+1=x+5 | | 6+6x=7x-2 | | 15a+7=3a-67 | | x/3+1=x/2-1 | | 55-3q=-5+2q | | 7(-10+3x0=-49 | | 3(y=3)=6(2y-4)-3 | | 0(t)=196-16t^2 | | 7+.2x=5+.30x | | 7+.2x=5+.30 | | 5x-7=-x+1 | | (x-5)=151 |