Solve 0 = y - 4*k + 19, -78*k = 4*y - 75*k for y.

Solve -3*m = -4*a - 8, -3*m + 15 = -5*a + 2 for a.

-5

Solve c + d + 13 = 4*c, -1 = c + d for c.

3

Solve 4*l = 0, -3*a + 162*l - 164*l = 3 for a.

-1

Solve 5*p + 35 = t + 4*t, -3*p + t = 17 for p.

-5

Solve -6*o = 4*x - o + 35, 2*o = -5*x - 31 for x.

-5

Solve 5*g - 5 = 5*d, -3 = 3*g - 15 for d.

3

Solve -4*m - d + 21 = 39, 5*d = 4*m + 30 for m.

-5

Solve -3*m = -2*f - 14, 17 = 4*m + 22*f - 23*f for m.

4

Solve 4*w - 11*d + 6*d - 13 = 0, 0 = 5*w - 5*d - 10 for w.

-3

Solve -5*v - 2*i = 12, -20 = 2*v + 7*i - 10*i for v.

-4