Solve 4*d = 4*y - 2*y - 28, -5*y - 5*d = 5 for y.

4

Solve 3*a = 4*g + 26, 12*a - 15*a + 2*g + 16 = 0 for a.

2

Solve 0 = -4*k + 3*t + 21, k + 3*t = 7*t + 15 for k.

3

Solve -k + 21 = -4*u, 6*u - 2*u + 20 = 0 for k.

1

Solve -3*t + 10*i - 4 = 8*i, -3*t = -5*i + 1 for t.

-2

Solve -5*n - 40 = 5*i, 3*n + 6 + 6 = i for i.

-3

Solve 5*n - 63*q = -64*q + 7, -4*n + 14 = -2*q for n.

2

Solve 0 = -2*h - 3*b + 18, -4*h + b + 2*b = 0 for h.

3

Solve -4*g = 8, 0*q + 4*q + 3*g = -10 for q.

-1

Solve 19 = 3*v - 2*r, 5*v = -r - r + 21 for v.

5