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+3 = (1/2)*(x-3) // - (1/2)*(x-3)
y-((1/2)*(x-3))+3 = 0
(-1/2)*(x-3)+y+3 = 0
y-1/2*(x-3)+3 = 0
y-1/2*(x-3)+3 = 0
y-1/2*x+3/2+3 = 0
y-1/2*x+9/2 = 0
y-1/2*x+9/2 = 0
y-1/2*x+9/2 = 0 // - y+9/2
-1/2*x = -(y+9/2) // : -1/2
x = (-(y+9/2))/(-1/2)
x = 2*(y+9/2)
x = 2*(y+9/2)
| 6x+11=8x+21 | | 5/7-6/7+4/7 | | 1/5(4x+2)=2(2-4x)+14 | | -17=-10+b | | 12x+29=7x+1 | | 25x+67=450 | | 12x+29=7x+9 | | 7x+16=5x+13 | | 10-2(3p-6)=4(3p-6)-8p | | h-10=-21 | | b/7-8=1 | | 3x-7+8(5x-3x)= | | 16a=5+12b | | 8(c-9)=6(2c-12)4c | | 3x+54=66 | | -3q-4(7q+5)= | | -4x^2-20x-9=0 | | 15x-71/2=30 | | 120+w+60+15+20=130+35+2(w)+0 | | 67d+25=450d+25 | | -3+3x=x+1 | | -12=39 | | 4+3b=b-4 | | |x-3|+|x+4|=9 | | 25x=67+450 | | 2(4x-1)=19+x | | -3(2x+6)-4= | | w=x+(-215) | | 9x-15x+7x=63 | | -7(z+2)+2z= | | 7p+2=-4+6p+2p | | 2(4x-1)=19x |