Solve 3*z = -12, 3*p - 28*z + 24*z - 28 = 0 for p.

4

Solve 5*x + 6*m + 20 = 2*m, -4*m + 12 = -3*x for x.

-4

Solve 2*b = -2*f + 4, 3*b + 13*f = 15*f + 21 for b.

5

Solve 13 = -g - 3*r, 5 = -3*g - 3*r - 10 for g.

-1

Solve -2*g = 9*b - 10*b - 6, -22 = -3*g - 5*b for g.

4

Solve -l + 21 = 4*j, 2*l + 4*j - 2 - 24 = 0 for l.

5

Solve -4*n = 20, 50*y - 48*y + 21 = -5*n for y.

2

Solve 3*a - 7 + 0 = -5*z, 4*a + 5*z - 11 = 0 for a.

4

Solve 3*b - 12 = -8*u - 15, u = -2*b - 2 for b.

-1

Solve a + 14 = -4*z, 25*z = 23*z + a - 4 for z.

-3