If it's not what You are looking for type in the equation solver your own equation and let us solve it.
40+6x+2=0
We add all the numbers together, and all the variables
6x+42=0
We move all terms containing x to the left, all other terms to the right
6x=-42
x=-42/6
x=-7
| 8x–4=234 | | 8*n–4=234 | | .04x+1.32=1.08 | | 4/5(x+7)=20 | | 8n–4=234 | | -8h-7=-5h+8 | | 45(x+7)=20 | | 8.3(x–3.1)=–37.35 | | 6-3(2k-4)=10.8 | | 1.3x-0.7x=7 | | 505=5(t−723) | | 3+2+2^10=x | | 5+g+2=5g-5 | | 3x+5x+18=189 | | 8=6x-11 | | 5(-6x-3)+4(2-x)=61 | | -2z-8=-2(-8z-6)+2z | | 3x+2x+60=90 | | (13)x+3=9 | | (1/3)x+3=9 | | 13)x+3=9 | | 7x+7x+20=90 | | 3+10-9f=-5(3f-9)+10f | | 8+2t=-1+3t | | u-16=-9 | | 6-72=w | | 10x²+26x-12=0 | | 14^n=63 | | 77x+98(x-6)=987 | | h-14=-18 | | h+4–7= | | 12+n=-19 |