Solve 0 = 3*i - 4*i, 3*s = -i for s.
0
Solve 0 = -7*x + 6*x - y - 10, -x - 25 = 4*y for x.
-5
Solve 4*s - 1 = 3*t + 22, 4*s + 5*t + 17 = 0 for s.
2
Solve -9 = 34*z - 31*z - 2*d, 15 = -5*z + 3*d for z.
-3
Solve -2*n + 10 = 5*a + 3*n, 0 = 5*a + n - 18 for a.
4
Solve -2*k + 4 = 4*h, -1 = -3*h - 5*k + 3*k for h.
3
Solve 9*z - 5*z = -3*b - 29, -b + 4*z = -17 for b.
-3
Solve f - 5*r + 17 = 0, 11 = 9*f - 7*f + 5*r for f.
-2
Solve 5*h - 10*n + 13*n - 22 = 0, 0 = h - 3*n + 10 for h.
2
Solve -3*y - 3 = 4*m, -21 = -7*y + 10*y - 2*m for y.
-5