If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(2/7)*x = 9 // - 9
(2/7)*x-9 = 0
2/7*x-9 = 0 // + 9
2/7*x = 9 // : 2/7
x = 9/2/7
x = 63/2
x = 63/2
| 150/x=12/400 | | -6y+6=y-8 | | -14x-12x=20+70 | | x=16+16+3 | | -(9-4a)-(3+3a)-29=-(9-7a)+(-a)+8 | | 3+3(3b+3a)-3=3a+3 | | 3/3a+7 | | 3b+3(3b+3a)-3=3a+3 | | 3m+7m=4-4 | | p^2=15p-54 | | 45=b+69+2b | | 3(a+2b)=9b+3a | | x/3+6=-2 | | 54-15p=p^2 | | 2x+3x=14-19 | | 15p-54=p^2 | | b^2-8b=20 | | -4x+4/3=8/3 | | w^2+49=14w | | F(-x)=x^3+5x-2 | | 12/z-3=15/z+1 | | 5a+2=2 | | -5x+2x=-18+3 | | (-2/3)(-4/5) | | r^2-32=4r | | 4x+3=11x-9 | | 4n^2+28n=0 | | -4.5+9t=-1.5+30t | | (-2/3)(-4/5)= | | 3(-1.5+3t)=-1.5+30t | | 2k+6=7-3k | | 7x+8x=-1+4 |