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)
(3/4)*x-((2/7)*x)+2/5 = 0
(3/4)*x+(-2/7)*x+2/5 = 0
13/28*x+2/5 = 0 // - 2/5
13/28*x = -2/5 // : 13/28
x = -2/5/13/28
x = -56/65
x = -56/65
| 12r+34=-6r+70 | | -5/3=-2/3x-6/1x-3/1 | | 2(x+1)/5=4x-4 | | (a^2-42)/(a-8) | | 6x+4(x-14)=-6 | | 3/4x+2/5-2/7 | | (5y-11)-(5y-7x+6)= | | 0.70x+0.70(40)=0.35(140) | | 1/5x=9-2/5x | | (4x+10x+11)-(9x-7x+6)= | | x^2-6x-6x-12=7 | | 160+x=4x-41 | | X+3=6n-12 | | 6x+4(3x-10)=68 | | (6/m)=(20/m)-2 | | 5x+17/8=9 | | x/3-1/6 | | 6/m=20/m-2 | | -7/1x-1/3-5/1x=431/3 | | 3A-30=30 | | -2/3x=4/9 | | 12x^2+24x/4 | | X/2+2=-4 | | x^2+(x^2+34x+289)=625 | | 5y+5=17 | | 1680987464/10048000= | | 96+2p=80-3p | | 1680987464*1= | | 9a-2=-9 | | 5y+3=-6y+4 | | (3x+2)+(2x+5)=x+17 | | 8/3x-6/5=-1/12 |