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)
x/5+x/7 = 8/7 // - 8/7
x/5+x/7-(8/7) = 0
x/5+x/7-8/7 = 0
12/35*x-8/7 = 0 // + 8/7
12/35*x = 8/7 // : 12/35
x = 8/7/12/35
x = 10/3
x = 10/3
| 8(x+2)-2=22-4x-8+12x | | 5x+5=10x-20 | | 9x-5y=18 | | 12r^2=27+27r | | 2x+5=115-10x | | 12+2x=2-4x | | -4(t-1)+9t=8t-8 | | 6c^2+9c/3c | | -5(t-1)+7t=6t-6 | | n-14=16 | | 51-3x=10x+22 | | -5+6(x-3)=15x+3-9x | | -9(t+2)=54 | | 0.5x-0.3(10-3x)=-0.6(x-5) | | 13=13 | | 1/6x-3=5 | | -7/8v=35 | | 3+y/2=3y/4-2 | | x^2+10x+98=0 | | 6+6x=42+x | | -14-9=12 | | 6(a-7)+20=2(a-7) | | 5(5x-3)+5=-9 | | -22u+-1x= | | 9x-3=6x+39 | | 4-4x=-2x-12 | | 18-3x=-9x | | 3(y+2)=30 | | -4x=-35+3x | | -10-3x=-4x+4 | | -0.2j=-0.2 | | 4+0.16n=3 |