Solve 0 = o - 4*t, -o + 45*t - 49*t - 8 = 0 for o.

Solve -5*t = -13 + 28, -2*b = 3*t + 27 for b.

-9

Solve -2*z + 4*t + 2 = 0, -19*z + 20*z + 5 = -t for z.

-3

Solve 5*b + 1 = -4*h - 1, -3*h - 17 = -4*b for b.

2

Solve d + 2*x - 2 + 4 = 0, 0 = -3*d + 5*x + 5 for d.

0

Solve -s = -t + 2, 0 = -3*t - 4*s + 9 - 3 for t.

2

Solve 0 = 2*d - 4*d - 2*b + 6, 0 = -3*d - 5*b + 15 for d.

0

Solve -7*a + j - 6 = -2*a, 3*a - 5*j - 14 = 0 for a.

-2

Solve 0 = -0*s + s + 5*k - 5, -4*s - 4 = -4*k for s.

0

Solve 0 = -4*b - 4, 5*b - 67 = 4*f - 52 for f.

-5

Solve 4*y + 14 = -5*x - 7, x - 19 = 5*y for x.

-1