Solve 5*a + d + d = 28, 0 = -2*a - d + 12 for a.

4

Solve -4*m + 5*x - 6 = 7*x, 4*x = -4*m - 8 for m.

-1

Solve 14 = -4*g + 3*q - 8*q, 4*g = -3*q - 10 for g.

-1

Solve m + 3*c + 4 = 1, 0 = -m - c - 3 for m.

-3

Solve -30*l + 15 = -j - 35*l, 12 = -3*l for j.

5

Solve 0 = o - 3*z + 7, 480*z - 485*z = -2*o - 9 for o.

8

Solve -8*s + 5 = 2*o - 7*s, -4*o + 35 = -3*s for o.

5

Solve r = 3*z - 10, -3*z = -25*r + 28*r - 6 for r.

-1

Solve -4*v - 5*c = -27, v + 5*c = 16 + 2 for v.

3

Solve -2*z + 6 = 0, 5*y + z + 3 = 3*y for y.

-3