If it's not what You are looking for type in the equation solver your own equation and let us solve it.
-40+4x=680
We move all terms to the left:
-40+4x-(680)=0
We add all the numbers together, and all the variables
4x-720=0
We move all terms containing x to the left, all other terms to the right
4x=720
x=720/4
x=180
| 23/x+7=6/x-9 | | -1/2x=-40 | | -4=d+4/5 | | 3(w+3)=-5(3w-1)+6w | | d-1=-4d-10+6d | | -13=7-4y | | r-1,823=1,312 | | 18+2,345,567,765b=2 | | -11b-5=-20-12b | | (X+10-12x)/11=-18 | | 1+s2=9 | | -18s-12=13-5-17s | | -5+5t=4t | | 4.1=2.7(1+r)^45 | | 7j+9=9-8j | | 7.2-17.7y=19.6-16.9y | | 13x+33+5x+3=180 | | -9-h=7+h | | 5+9u=8u | | x+2+153=0° | | 4b=5b-9 | | 20y-15=-y+18-12y | | -16+2y=2 | | x+2+153=180° | | -2(x-8)-3=13 | | 2x+13+5x-8=180 | | 6+q=3q | | 3b+-6=8+-4b | | -1-17t=-20-18t | | 0.25(x+2)=9.5 | | 5(3x+26=2(x+39 | | 4u-10=5u |