If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
b/13-((8*b)/13) = 28/13 // - 28/13
b/13-((8*b)/13)-(28/13) = 0
b/13+(-8/13)*b-28/13 = 0
-7/13*b-28/13 = 0 // + 28/13
-7/13*b = 28/13 // : -7/13
b = 28/13/(-7/13)
b = -4
b = -4
| 6+5r=5r-3 | | 1.9y-2.6=2.5y-4.4 | | (3+3*2)= | | -13/5x=195 | | 0.3t-0.6=0.8t+3.8 | | -5(r+4)=-51 | | 14=-5x-6 | | -3+-3+12x=14+8x | | -7m+29-5(m-1)=9m-(6m-7)-4m+5 | | 6(5x-20)=48 | | ((y-1)^5)/((y^2+2y)^8) | | a+b=22 | | -27-(-25)= | | 2x+(x+6)=33 | | -9x-24=3(-3x-8) | | -2p-5(6-2p)=6(p-4)-14 | | 7x-6-7x=-7 | | -21-(-25)= | | 2xn=28 | | p=2*96+2*136 | | u-2/2=4/3 | | -2.8p+3=0.9 | | 262+503=n | | 4x-11=2x-17 | | a=1.1 | | 21/3+x=51/2 | | -5n-8=-83 | | 4+12/3*6 | | 4+12/3.6 | | -2(5v-4)+5v=4(v+5) | | 503+n=748 | | 538+n=980 |