Solve 15*b - 10*b - 2*i = -21, 0 = -b - 5*i + 12 for b.

-3

Solve z - 4*b = 20, 16*z - 19*z + 32 = -5*b for z.

4

Solve -2*t = 4*j + 3*t - 8, -5*t = -4*j - 32 for j.

-3

Solve 0*v + 2*m + 6 = 4*v, -5*v + 15 = 5*m for v.

2

Solve 12 = c - 4*c, 0 = -3*b - c - 10 for b.

-2

Solve -3 - 3 = -4*d + 2*l, 5*d - 5 = 2*l for d.

-1

Solve -5*o + 0*t + 16 = -3*t, 12 = 2*o - 4*t for o.

2

Solve 12 = -3*d + n - 4, -4*n = 4*d for d.

-4

Solve 3*a = 3*i, 25 = 14*a - 12*a + 3*i for a.

5

Solve -2*b - 34 = -4*c - 8, 5*c = -3*b + 5 for b.

-5