If it's not what You are looking for type in the equation solver your own equation and let us solve it.
1+a=-15=3a
We move all terms to the left:
1+a-(-15)=0
We add all the numbers together, and all the variables
a+16=0
We move all terms containing a to the left, all other terms to the right
a=-16
| x²+20x+100=0 | | 3.x+4=22 | | 4x-(6x-4)=8 | | 13+4j=73 | | 5y-2y=9-4 | | 9x=76 | | 9x-3=-66 | | -10+a=3a=2 | | v+1-1= 2 | | 4(f-1)+3=-5 | | 6x+1+x=180 | | -3t^2+6t=0 | | -7+5p=2p-4 | | 21(9-w)+15w=213 | | -3x+3+4x-1=0 | | 3x/8-1/2=x/5 | | 5u-97=3u-35 | | 77=4r-17 | | x-2+x-2=0 | | -11+2n=-2n+5 | | -4x-10+9x-5=0 | | 3u–35=5u–97 | | 22(3-x)+12x=96 | | 52=22+3q | | 7(-2x+8)=20 | | 3/4x+1=0 | | 22(3-x)+12=96 | | 2b+26=7b-4 | | 4n+n=6n8 | | -2+4b=14 | | -9=-2n+6n-1 | | j/6-2=2 |