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)
(4/7)*(14*x-21) = 7*x+11 // - 7*x+11
(4/7)*(14*x-21)-(7*x)-11 = 0
(4/7)*(14*x-21)-7*x-11 = 0
4/7*(14*x-21)-7*x-11 = 0
4/7*(14*x-21)-7*x-11 = 0
x-12-11 = 0
x-23 = 0
x-23 = 0
x-23 = 0 // + 23
x = 23
x = 23
| b/116b/11=35/11 | | 2-(t+2)+5t=6t+2 | | -97=-1+3(5k+7) | | -c/6+12=-7 | | -3/4x+6=55/16 | | 7x+3-10= | | -(8x-3)-(5x-5)+9=-12(x-1)-(4x+13)+3 | | (8x/10)-(7x/20) | | 8w+2(w-10)=0 | | (8x/10)-(7x-20) | | w/3-4=13 | | a+a+6=3 | | =4(3y-2y+6y) | | 3(x+2)+5x+6+x-1/x-2=7/x+3 | | 2(2t-4)+t=7 | | -4(3y-9)+2(2y+8)= | | 3a-10a=98 | | (3x+7)(9x^2+8x+9)= | | Q=18-3p | | 1.3a+6+0.7a=3 | | 6+7/2x=-15 | | -7=-9+n/8 | | -2(-10-8)-10=-7(10n+12) | | 2y+34=130 | | -16=7(p+3)+30 | | -7x+2(-6x-8)=62 | | -9y-3=13+2y | | h^2=a^2+b^2 | | 0.75x^2+7x+16=0 | | (3y^2-y-2)/(3y^2+5y+2) | | 43-24x=232 | | -8(2+r)=176 |