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)
y = (1/4)*x+40 // - (1/4)*x+40
y-((1/4)*x)-40 = 0
(-1/4)*x+y-40 = 0
y-1/4*x-40 = 0 // - y-40
-1/4*x = -(y-40) // : -1/4
x = (-(y-40))/(-1/4)
x = -4*(40-y)
x = -4*(40-y)
| -9x-4=-3x-6 | | -11/3x-4/5 | | -2x-8=6x+12 | | 3k-45k+168=0 | | 3(v+6)=-6(2v-1)+v | | -3x-4=5x+20 | | y=8(5-4) | | 2x+(13/24)=(5/6)-(1/12)x-(1/3) | | 324=x(x+15) | | 4*2+3.7y=-8.5 | | 36=x(x+5) | | 8x+15=47 | | 3x+8(5x+19)=20 | | 36=8x-4 | | 6(x+6)=x(x+5) | | 4x-6=12x+50 | | 8(x+8)=7(16) | | 8(x+8)=7(15) | | (3(x+5))/4=4x-4 | | 4+2y-3=6y+6-3y | | 5(g+8)-7=30 | | 8(x+8)=7(17) | | 2(3-4yi)=3x+16i | | 6(x+6)=7(18) | | 31=-1+8x | | -4=8x-4 | | 10(x+10)=9(30) | | 11-k/2=-83 | | y=8(0-4) | | 13=-17+5x | | 7(x+7)=6(14) | | -4a^2-17ab-4b^2= |