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)
2.8 = b/3 // - b/3
2.8-(b/3) = 0
2.8-1/3*b = 0 // - 2.8
-1/3*b = -2.8 // : -1/3
b = -2.8/(-1/3)
b = 8.40000008
b = 8.40000008
| D=9/4(m-25) | | 7x^4=28x^2 | | n+34=35n | | t+d/10-12 | | 9-(2z-1)=2-3z | | B=xn+x | | 3c*5d= | | 17-20q=(-13-5)4 | | (34-x)+11=-4 | | 3-x=18+6 | | 4-(a+3)-7=6a-21 | | 8h=-400 | | ((0.79-X)(0.21-X))=0.0011 | | 5y-7=2y+1 | | -3/7=2f/3 | | 14x-1=12x+17 | | (4X2)/((0.79-X)(0.21-X))=0.0011 | | 3x-21/10=5x-3/6 | | 2x-11=-13-10x | | -4(2x-2)-3x+1=2x-3 | | 4(a+12)=-6 | | 8x^2-7=4x^2+9 | | Y=(0.8Y+100)+(-20r+1000) | | 75-y=287 | | 500=20+150*ln(8t+1) | | 72=-3y | | x-1-2(-5x+4)=-5x-25 | | (X+18)-27=6 | | 1*5+6000x=45*9500000x | | 7x+4+x=1+5x-9 | | x=ae | | -7z=-84 |