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)
(1/4)*(2*r-s) = 3*(r+s) // - 3*(r+s)
(1/4)*(2*r-s)-(3*(r+s)) = 0
(1/4)*(2*r-s)-3*(r+s) = 0
1/4*(2*r-s)-3*(r+s) = 0
1/4*(2*r-s)-3*(r+s) = 0
-5/2*r-13/4*s = 0
-5/2*r-13/4*s = 0
x belongs to the empty set
| y=6.75(0)+25 | | 6x^2+12=17x^2 | | 6x^3+12=17x^2 | | 4x-b+2a=6x-2b | | 41.4=4.3x+7 | | 5mr=17 | | X/5+7=5 | | -11=1/4(8x-12) | | 2y-5-4/3(2y+6)=-5/6 | | (2u+7)(5+u)=0 | | (4x-3y)= | | 8x-206=-11x+60 | | 14x^7y^9/7x^4y^6 | | -7(-8m+16)-4=-620 | | 5x-3(x-6)+2(y-4)= | | x^4=16/81 | | -8x+7=57.4 | | 16+x^2=10x | | 1/4w+5=w/3+10 | | 5-2(3-y)=2(2y+5)+1 | | 2y+4=3y+25-4y | | 5-4x+15x=7x+17 | | -7=x/7-13 | | 8+1/7g=2 | | 4x^2=15-4x | | y+15=-32 | | 1/4+3/5t=-13/20 | | 4(2c-1)=-6(6+3) | | r+11+r=29 | | -x-64=-11x+96 | | 3/5t=9/25 | | 90x+45y-15=80x+85y+5 |