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)
(2/7)*(15*x+4) = (1/2)*(9*x-26)+12 // - (1/2)*(9*x-26)+12
(2/7)*(15*x+4)-((1/2)*(9*x-26))-12 = 0
(2/7)*(15*x+4)+(-1/2)*(9*x-26)-12 = 0
2/7*(15*x+4)-1/2*(9*x-26)-12 = 0
2/7*(15*x+4)-1/2*(9*x-26)-12 = 0
99/7-3/14*x-12 = 0
15/7-3/14*x = 0
15/7-3/14*x = 0
15/7-3/14*x = 0 // - 15/7
-3/14*x = -15/7 // : -3/14
x = -15/7/(-3/14)
x = 10
x = 10
| -(9m-7)-3m=-137 | | 8h=w | | 3(x+1)-2x+3=5x+4(x+10) | | w=8h | | (15c^2)+22c-48=0 | | 0.11x+0.9(x-2)=0.01(2x-2) | | ((2z-16)/(121))/((z-8)/(22)) | | u/11=13/17 | | 3.014x+10-2.501x=31.18 | | 4(4x+5)=19x+2 | | 37+9(9)= | | 4x^6+6x^4+14x^3= | | 99=19x-124 | | 8p-7-3p= | | x*2+16=72 | | x*3.014+(10-x)*2.501=31.18 | | 75x+15y=7500 | | 32+8m=6(m+5) | | 75x+10y=1503 | | y=7ln(7x) | | 3+3p-7= | | 75x+15y=1503 | | -6k-4k= | | -144=8x+4(x-3) | | 5x+6+43=12X | | -2n-1-3n-2= | | -12p-4(2-5p)=3(p-6)-10 | | 28z^11-20z^8= | | 75x+15y=o | | 4x+12y=z | | (x/(x+6))+(6-(6-x)) | | 3x+9y=z |