Solve -31 = -4*r + 5*j, 0 = -5*r + 9*r - 3*j - 25 for r.

4

Solve -2*i - 2*z + 14 = 2*z, 17 = -5*i + 3*z for i.

-1

Solve 3*z = -2*f - 26, -f - 23 = -46*z + 50*z for f.

-7

Solve -x = x + a + 1, -3*a - 3 = -x for x.

0

Solve -c - 2*t - 33 = -21, 2*c + 2*t + 16 = 0 for c.

-4

Solve -2*m - 1 = -7, 0 = 3*z + 3*m - 6 for z.

-1

Solve -a = k - 9, 5 = 3*k + 2*k - 5*a for k.

5

Solve 5*h = h + 2*k + 6, 5*h + 2*k + 6 = 0 for h.

0

Solve 0*o - 5 = h + 2*o, 2*h + 2 = 4*o for h.

-3

Solve -12 = 6*f, -25 + 13 = -4*h - 4*f for h.

5