Solve 4*x + 15 = 5*z + x, 15 = 5*z + x for z.

3

Solve 2 = 3*z - 5*z, 0 = 3*m - 3*z + 9 for m.

-4

Solve q - 2 = -3*h + 2, -2*q = -4*h + 2 for h.

1

Solve 0 = 2*i - 6*u + 22, 4*u + 15 = -5*i + 9*u for i.

1

Solve 5*u + 4*k - 33 = 0, -6*u + 3*k + 28 = 4 for u.

5

Solve -2*n + 10 = 0, -q = 4*n + 4 - 28 for q.

4

Solve 4*i - 40 = -3*v - 2*v, -2*i + 18 = 2*v for v.

4

Solve 3*y + 2*g + 2*g = -7, -4*y - g = 18 for y.

-5

Solve 5*d + 0*d = 4*i + 36, -d = -5*i - 24 for i.

-4

Solve 5*u + 5 = 5*t, -3*t + t + u = 1 for t.

-2