If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-3x-5+7x=31
We move all terms to the left:
-3x-5+7x-(31)=0
We add all the numbers together, and all the variables
4x-36=0
We move all terms containing x to the left, all other terms to the right
4x=36
x=36/4
x=9
| 1/x^2=0.16 | | 3x+5=+2x+1 | | 14x−17−8x+2=12x+3−x−10 | | 7^(x+2)=5.25 | | -6x-2-4x=-2 | | -x+2+5x=-10 | | 11+v=29 | | 1/4x=15x=7 | | 15x-8=16x+1 | | 05/w=1.25/5 | | 3(n+3)=-4+30 | | 35=t+14 | | 10^2x=0.001 | | 4t^2-21t+33=0 | | e-35=49 | | 5/3x+1/3x=31/3x+7/3x | | 42=u+28 | | k^2/1.2-7=23. | | 12+w=31 | | 27.8+h=90 | | 27.8+h=90 | | 0.62(x+10)-10=0 | | x(5x−3)=20x−12 | | n+3.8=-7.4 | | 9x−9=5x−29 | | 2k-3+2k-3=45 | | 2k-3+2k-3=45 | | 2(3x12)=18 | | 2.1x-3.2(4x+8)=11 | | 20x²+4x=0 | | 6x+4=6x+4=8x+8 | | 2(3x²-1)=6x+5x6x²-2=11x6x²-11x-2=0(6x+1)6x+1=06x=-166x=-16 |