If it's not what You are looking for type in the equation solver your own equation and let us solve it.
v in (-oo:+oo)
(7*v)/2 = 56 // - 56
(7*v)/2-56 = 0
7/2*v-56 = 0 // + 56
7/2*v = 56 // : 7/2
v = 56/7/2
v = 16
v = 16
| V=53T-5T^2 | | Y/3-519 | | 4(2n+1)-2(3-4n)=6-4(3-4n) | | 19=p+14 | | 9d^2-4=0 | | 30+32+31+p=132 | | 5x^2+25y^2=225 | | 2g^2-4g=0 | | 8x^2y^2-18=0 | | 10x+16=24x+4 | | 8x=x+10(3) | | 3q^2-q-9=0 | | x(2x+9)+5=0 | | 18+23=t-42 | | (9lnx)-1/2lny | | -y^2+8y-5=0 | | 1/2(2y-6)-1=-(4-y) | | (2x+6)=50 | | K=45 | | (4x+4)=(6x-6) | | 2(x-2)/3 | | 8x=10+x(3) | | 4m-4m-8=-2m+12 | | 9u^2-6=0 | | -7(p-894)=-210 | | -7m^2-9m=0 | | -3w-45=-8(w+5) | | 6+6(7-a)= | | 9v^2-v-5=0 | | 21(n+21)=336 | | 4(3c-1)-1=8c+3 | | 5+(-6)=27 |