Solve 5*l + 15 = -139*r + 140*r, 4*l = 4*r - 12 for r.

0

Solve -2*z + 3*z + 9 = -3*a, -5*a - z = 13 for a.

-2

Solve a - 3*d = -13, 24*d = 5*a + 26*d - 20 for a.

2

Solve 0 = 2*w, -w = -5*h - 3 - 2 for h.

-1

Solve 2*s + 5*a = -s + 25, 0 = 5*a - 10 for s.

5

Solve -4*i - 6 = -3*f, -14*i + 12*i - 2 = -2*f for f.

-2

Solve 3*q - 6 = 0, 5*k - 2*q = k - 12 for k.

-2

Solve 4 = 4*g + 4*o, -5*g - 4*o + 6 = 4 for g.

-2

Solve 25*i - 5*g = 21*i + 35, -3*g = -4*i + 29 for i.

5

Solve -4*u = 3*i + 1, -4*i + u + 2*u + 7 = 0 for i.

1