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)
5*a-(3*a)+10 = 28 // - 28
5*a-(3*a)-28+10 = 0
5*a-3*a-28+10 = 0
2*a-18 = 0 // + 18
2*a = 18 // : 2
a = 18/2
a = 9
a = 9
| 6w+3+w=-11 | | 5=4d+d+5 | | -9-6d+7d=-9 | | 6x+9=5x+3 | | 6x-7=-19-7x | | 9-3b+4b=15 | | -4-n+5n=28 | | 6t+7+4t=-73 | | 4a+5-5a=1 | | -3=m+5m-9 | | 7n+1-3n=-11 | | -14=-3a+6a+10 | | 315+45p=550 | | 6-7x+2x=36 | | 9-5t-2t=-75 | | 1-4x-5x=-53 | | 3+6w-5w=5 | | 15=2k+k+9 | | -10-7k+2k=-10 | | 3a-6+7a=34 | | -10-3w-5w=14 | | 4-w+7w=-68 | | 4=-3b+7b+4 | | 5=2d-3d+7 | | -101=6t+3t-2 | | -42=m+4m+3 | | 9+5b-b=29 | | 5d+1-4d=10 | | 5a+5-a=-11 | | -5-7a-4a=17 | | 6+6m-7m=11 | | -10=7n-6n-3 |