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)/7+x/6+45/7+30/6 = 15 // - 15
(3*x)/7+x/6+45/7+30/6-15 = 0
25/42*x-25/7 = 0 // + 25/7
25/42*x = 25/7 // : 25/42
x = 25/7/25/42
x = 6
x = 6
| 12=3(x+2) | | 15t-8(t-8)=57 | | x/2-6.8=13.3 | | 2(x-6)=-2.2 | | 3x+4/5+2=-5x/6 | | x+1/4x=7/8 | | (2x^2+15x+2)/(2x+1) | | 243^2/5 | | -52=4x+7x-8 | | 27x^2-18x=0 | | (2/3*x)=24 | | 5(a+9)=75.5 | | -32x^4+140x^5/20x^5 | | 39.6=7c-8 | | 2x+70=8x+58 | | 3y-4=4x-8 | | 4x+2=-14x+21 | | 4x-8=3y-4 | | -2+7x=-4+6x | | 9a+5+4a+11= | | -6x-7-4x=-37 | | 6e-6=24.6 | | x-12=(.5)y | | (2/3)x-4=20 | | 2p=3 | | -1/2x+5=-3 | | -12=3-2k+3k | | 3x+88+9x=180 | | 1-3x-(x+1)=-3x+4 | | 4(2x-2)+12=21 | | 5(4x)=80 | | 8/21=x/63 |