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 = (5/7)*x-20 // - (5/7)*x-20
y-((5/7)*x)+20 = 0
(-5/7)*x+y+20 = 0
y-5/7*x+20 = 0 // - y+20
-5/7*x = -(y+20) // : -5/7
x = (-(y+20))/(-5/7)
x = 7/5*(y+20)
x = 7/5*(y+20)
| 8f-2f=-16 | | 19x+26=x+8 | | -0.2x^2+0.8x+1=0 | | 15z-13z= | | 15t+38=10t+13 | | N-7+6=12 | | 14x+14=12x | | 1/4a-2/3a=5/6 | | 2(3y+5)=3(5y+13) | | -6(2p-5q)= | | 2x^2-45x-91=0 | | 4X-1/3=11 | | X/12=5/32 | | 10p-p=2p | | 5x12=5/32 | | 4x-12=49 | | 13(p+q)= | | 13-(3/2x)=37 | | (2x)Squared-x-6=0 | | 1=.25x+.39x | | -0.6x^2+0.2x+2=0 | | 10=.25x+.39x | | 1/2(2x-6)-5 | | 6k-(4k-13)= | | 5-7(1-3)=124 | | 0=x^3+5 | | 2x-12=-6(6x-2) | | 48x-6y= | | 2n-10=9n-20 | | 3(3y+7)+5y=10 | | pq=2q+8p | | 7x-5=35-x |