If it's not what You are looking for type in the equation solver your own equation and let us solve it.
s in (-oo:+oo)
(-15/28)*s = 9/10 // - 9/10
(-15/28)*s-(9/10) = 0
(-15/28)*s-9/10 = 0
-15/28*s-9/10 = 0 // + 9/10
-15/28*s = 9/10 // : -15/28
s = 9/10/(-15/28)
s = -42/25
s = -42/25
| 4x+4(-3x+9)=12 | | 7(d-5)+12=5a | | 3(3c-2)-2c=0 | | 2x-44+48=180 | | 3x+2y=1900 | | -5/12/15/32 | | -n/5-5=16-6 | | 2x-44+8=180 | | 7x^2-10x=-12 | | 7x(3+4)=21x+14x | | 6x-3+2x=9 | | f(4)=x^2+2x+3 | | 22c+33d= | | 1/2-3/8-(-1/4) | | x+(.08x)=75 | | 3x+3x-4=14 | | h/25=3.8 | | 15i-15i= | | 1/4x-2=x-20 | | N^2+10n+80=-8 | | x^2+y^2+4x-4y-1=0 | | 6x+17=33 | | 9x-6x-1=50 | | 3/2(n-46) | | -9n^2+6n+6=7 | | F=3/2(n-46) | | (5xy)^3/4 | | 0=12x^2-96x+14 | | 23n-23n=6n+43 | | 9x-6x+5=50 | | 0.7x+4=3.4x-3 | | (5x^2)+19x=4 |