Solve 13 - 5 = -x + 2*o, -2*x + 19 = 3*o for x.

2

Solve -42*o + 11 = 5*x - 45*o, o = 2*x - 5 for x.

4

Solve -3*l = -4*k + 28, -3*k + 6*k - 4 = -2*l for l.

-4

Solve 0 = -3*w + 4*o + 26, 4*w = 6*w + 2*o + 6 for w.

2

Solve 0 = 4*a + i + 7, -a - 3*i - 28 = -8*i for a.

-3

Solve -4*w + 5*j - 2*j - 11 = 0, -4*w - 29 = 3*j for w.

-5

Solve 0 = 5*x - 10*z + 7*z + 24, 0 = 3*x + 4*z - 3 for x.

-3

Solve 9*n - 14*n - 4*m + 1 = 0, 2*n + 2*m - 2 = 0 for n.

-3

Solve -12 = -4*a + 2*j, -35 = 2*j - 43 for a.

5

Solve 2*c + 5 + 0 = -k, 3*c = -2*k - 6 for k.

3