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)
7.9-(-2.7/(-2.7)) = x // - x
7.9-x-(-2.7/(-2.7)) = 0
7.9-x-1 = 0
6.9-x = 0 // - 6.9
-x = -6.9 // * -1
x = 6.9
x = 6.9
| 7.9-(-2.7)=x | | 4x^3/2x= | | 2x(3x-5)-(5-3x)=0 | | (7.9-(2.7))/(2.7)=x | | 7.9-(2.7)= | | 0.08=-0.0082x^2+0.06x | | (2x^2-6x)-(3x-3x^2+8x+2)= | | A^2-4A+225=0 | | 15+15x=132-11x | | 24x+9-6x= | | (x^2)+(8x)=4 | | 3y+6x+18=360 | | 8f+2=4f | | (3/2)|2x-5|-2=7 | | 45x^2-4x-5=0 | | -7/8(2) | | 35a^4+51a^3-8a^2=0 | | 3x/4-5=1 | | 42x^2-91x+42=0 | | 0.625= | | 0.625/1000= | | 2y^2+5z+3z^2=0 | | 160=30-y | | 21x^2+35xy+14y^2=0 | | 13z^2+49z-2=0 | | 8y^2-34y+35=0 | | 3+4(w+1)=5w-9 | | 6b^2+95b-16=0 | | 12t^2+40t-7=0 | | 18y^2-325y+18=0 | | 3+4(w+4)=5w-9 | | 15z^2-46z+35=0 |