Solve 5*r + 20 = -0*r for r.

-4

Solve 477 - 155 = 46*k for k.

7

Solve 16*a - 12*a = 28 for a.

7

Solve -5 = s - 0 for s.

-5

Solve 10*n = 53 - 3 for n.

5

Solve -8*q - 10*q = -72 for q.

4

Solve 0 = -3*z + 16 - 25 for z.

-3

Solve 0 = 219*i - 223*i + 20 for i.

5

Solve -30 = 3*z - 9*z for z.

5

Solve 14*t + 18 = 17*t for t.

6