Solve 4*t = 12, x - t + 9 = t for x.

-3

Solve p = 2*t + 15, 0*t - t = -3*p + 20 for p.

5

Solve 3*d = 12*x - 17*x + 13, -2*x = -10 for d.

-4

Solve -p - 17 = -5*k, -p + 10 = -4*k + 23 for k.

4

Solve -4*c = -k + 3 - 16, c = -5*k + 19 for k.

3

Solve 3*t + 4 = m, 2*t - 13 = -4*m - 39 for t.

-3

Solve -3*r - s + 18 = 4, 10 = 5*s for r.

4

Solve 4*l = 3*z + 18, 3*z = -3*l - 0*l + 3 for l.

3

Solve -3*j = -m - 12, 0 = -3*m + 4*m for j.

4

Solve -58*j + 53*j - 5*s - 20 = 0, -5*s = -5*j - 30 for j.

-5