Solve 15 = -3*m, -7 = -4*n + 4*m - 3 for n.

-4

Solve m - 5*h = -2, -10*m + 5*m + 19 = 4*h for m.

3

Solve 12 = 3*r - 2*t, -3*r = -2*t - t - 15 for r.

2

Solve 0 = 3*s - 4*f - 7, -2 = 3*s + 3*f + 19 for s.

-3

Solve 3*g + 2*i + 22 = -3*i, -14 = 5*g - 3*i for g.

-4

Solve -o - m = 2, 5 + 1 = 2*m for o.

-5

Solve 5*o + 24 - 69 = 5*t, 22 = -2*t + 3*o for t.

-5

Solve 2*y = 3*y, -20 = -4*k - 3*y for k.

5

Solve 0 = -3*a + 4*s - 8, 2*s - 3 = 4*a + 11 for a.

-4

Solve 3*k = 5*g - 17, 5*k - g = 7*k - 6 for k.

1