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)
x*((7*y)/4) = 12*c // - 12*c
x*((7*y)/4)-(12*c) = 0
x*((7*y)/4)-12*c = 0
7/4*x*y-12*c = 0 // + -12*c
7/4*x*y = -(-12*c) // : 7/4*y
x = (-(-12*c))/(7/4*y)
x = 48/7*c*y^-1
x = 48/7*c*y^-1
| 2(x+8)=7x+1 | | 2b/4+b/3=10 | | 2b/4 | | 75-9=5(-4+2y) | | -3r+7=-1 | | 9x+8+x=5x+11x+21 | | 1/4y+1/6y=-2 | | (x+9)(x-5)=x^2+1 | | 2x+1=a | | 3x+5/2-x+1/4=x+3 | | 8y-5=4y+40 | | 3x+y=420 | | 1+7x=-3x+6x | | 352=(2*95)+2w | | (x+2)/(3)=4-(x+5)/(2) | | 334=(2*98)+2w | | 5(21-u)/8=-5u+15 | | 7(3x-8)+40=4(5x+6)+x-13 | | 18(b-1)+10=2(9b-4) | | (1/3)(24x+21)-14=(-3/4)(8x-20) | | 75-9h=-20-10h | | y-(v+b)=x | | 224=4s | | (5x+7)+(2x-1)= | | 348=(2*81)+2w | | (2x-7)/(4)+x=(2x+7)/(2)+7 | | 330=(2*89)+2w | | 2y-3+y=1(y+2) | | 2x/3+x | | 6/y+9/y=5 | | 0.4x-1.1(-17)=-68 | | 10y+6g-4x= |