Solve -19*r = 76 - 0 for r.

-4

Solve 0 = -4*o - 10*o + 9*o for o.

0

Solve 0 = 2*k - 3*k - 3 for k.

-3

Solve -23*k = -4 + 4 for k.

0

Solve 4*t = t for t.

0

Solve 72 = -4*i + 56 for i.

-4

Solve 28 - 98 = -7*k for k.

10

Solve 298 = 18*j + 406 for j.

-6

Solve 4*y - 6 = -18 for y.

-3

Solve 12 = w + 2*w for w.

4