If it's not what You are looking for type in the equation solver your own equation and let us solve it.
R in (-oo:+oo)
R/(-5) = 4 // - 4
R/(-5)-4 = 0
-1/5*R-4 = 0 // + 4
-1/5*R = 4 // : -1/5
R = 4/(-1/5)
R = -20
R = -20
| (2x+4)(x+4)=196 | | 16/18=4/c | | 5-3(3x-5)=6x+140 | | 3h=99 | | 6-12b=9b | | 67x-5=-75 | | 15t+3=12t+4 | | 2x-7=3y | | [0.4][0.7]= | | -3(5b+7)=21-b | | 1r+10+1r+2(r+10)=130 | | 69-y=4 | | -2y(y+5)=0 | | [0.5][0.6]= | | 7a+7a-3a=121 | | (4x-1)=(-6x+3) | | 3n^2=-8n-3 | | 5(m-2)m+36=-4 | | (2*x)/(4/9) | | 7a+7a-3a=21 | | -7(2x+1)+4x= | | 2*x/(4/9)=1/2*x | | -2y(y+5)(y+6)=0 | | 3(5c-2)+2=26 | | (x+35)(x+18)=1260 | | 1/3-7z= | | y-4=3/4*y | | 3(p+20)=3(2p-4)+9 | | y=5/7x | | https://jenks.instructure.com/courses/17726/files/366548/preview | | -5=8/-9 | | 4x+6+15=5(2x+3) |