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)
3*x = -4/7 // + -4/7
3*x-(-4/7) = 0
3*x+4/7 = 0
3*x+4/7 = 0 // - 4/7
3*x = -4/7 // : 3
x = -4/7/3
x = -4/21
x = -4/21
| 6*15-15= | | x^2-2x+1/2 | | -19x-6(6-5x)=6(p-4)-7 | | x+3=8/7 | | 2v-2=3v | | 2(2w+7)+2w=110 | | P+(-7)=-5 | | (3x^4-9x^2+6)/(x^2+6) | | 18+x=1 | | 8-9x=24x+15 | | 80000+209.00x=150015 | | 6(5+6m)=210 | | (a+b)-(a-b)=b | | 5g-2=10 | | 31-x=171 | | 21x-7=3 | | -22+x=11 | | 83=15+Z | | 15g+8=8g+15 | | 1680+x(230.25)=4443.00 | | (x+y)-(x-y)=y | | 79+y=x | | 11z-5=9z+2 | | 17x=0.4x | | 2/2X-5=4/5X+1 | | -2.8/-3 | | V+32=-51 | | 8/x=-12/30 | | x-6+9=8/7 | | 78.3/13.5=b | | 8/x=1-2/30 | | 41n+18=49n |