15-2+8+10=
The roots of 1/(x-3)-1/(x+5)=1/6 are:
(-3)+(-2)-(+5)
mn(5x+1)-pq(5x+1)
0.125=0.408*e^-75x
A pair of linear equations which has a unique solution x = 2, y = -3 is:
2 5/9+1 1/3+2/27
4pr-8ps+qr-2qs
If 2/5th of a number is 6 more than ½ the number, then what is the number?