If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a in (-oo:+oo)
4/5 = 7/5-a // - 7/5-a
a+4/5-(7/5) = 0
a+4/5-7/5 = 0
a-3/5 = 0 // + 3/5
a = 3/5
a = 3/5
| 12((5z)/12) | | 3150=1800x | | -7x-14+8x=-1 | | (-4)/(3)/(1)/(6) | | 1/4-2/5m=m+1/2 | | -4/3/1/6 | | 3xy+z=z+3xy | | 0.5(5q+8)=4q-5 | | 32-x-2=0 | | 2(x+3)+3x=2 | | 2x+6=6x+2y | | 9-P+0.1(70)=10+P-9(2) | | 6/7-4/14= | | ((5z)/12)+2/3=z/4-2/3 | | 5t-8=2+3t | | 96=3x+4x+5x | | 3x^2+24x-51=0 | | 4n-18=-36+6n | | 120+20(x/7)=500 | | 12x+19=-4+3 | | -16y+11=-5 | | -12=4(2g-4)+7(g+7) | | 3x^2+24-51=0 | | 4-6a=24+2a | | 72=-2(7x-1) | | 13+7t+9+9t-t=37 | | 13+7t+9+9t+t-t=37 | | -13=-13c+3+10c+5 | | w+a=g | | 8x-30=12x-50 | | (3x-8)(x-2)=0 | | 2y^2+15y+13=0 |