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)
-7 = b/4 // - b/4
-(b/4)-7 = 0
-1/4*b-7 = 0 // + 7
-1/4*b = 7 // : -1/4
b = 7/(-1/4)
b = -28
b = -28
| -12x+3y=1 | | 5217=47(p+25) | | 2X+7Y=60 | | 7y-4x=3 | | 5+(n-1)(1/6)= | | (x+2)(2x-3)=5x^2+x-114 | | (5x^2+26x+9)/(x+4) | | b/8=6 | | 41/2+3/16 | | z/3.75=4 | | 12z=180 | | 1+(n-1)(-5.7)= | | 14+2=29 | | 5z-8=-3z | | 2x=3(4x-5)+5 | | 1/2x+5=-7 | | -5a+10=-15a | | 3.6x-5=2.6x | | 12x-17x+6=0 | | 8y-4=-y+14 | | y=-16t^2+480t | | 1/6z-11=-9 | | 14a-4=12a | | -5(-2x+3)-3x^2=1+2x^2 | | 1/2y-5=-6 | | x+13=46 | | 5x+12=11x | | 1/2a-4=-3 | | X^2-8x-39=9 | | n+5=20 | | X-4X=12 | | 1/5x*6=-3 |