Let n = 4 - -1. Solve n*v - 2*v = 12 for v.

4

Let y be (810/(-42) - 6/(-21))*-1. Solve -y = 2*j - 9 for j.

-5

Suppose -7*n + 2*n = 7*n. Let g be 0 + -1 + (-1)/(-1). Suppose g*b - b + 4 = n. Solve -r - r + b = 0 for r.

2

Let l(b) = -b - 5. Suppose 5*j = -2*r - r - 10, -j - 14 = 3*r. Let y be l®. Let a = 0 - 0. Solve 4*z + a*z = y for z.

0

Suppose 0*v + p - 18 = -3*v, 0 = -4*v - 4*p + 32. Suppose 22 = v*d - 23. Suppose -2*y - 8 = -6*y. Solve 1 = y*s + d for s.

-4

Let a be (-8)/(-28) - 6⁄21. Solve a*w + 5*w = 25 for w.

5

Let i be ((-4)/10)/(1/(-15)). Let m be (-4)/i*(-3)/2. Suppose -q + 17 = -4*f, -q + 2*f + 8 = -m. Solve -t = -4 - q for t.

5

Suppose 19 = -2*r + 3*r + 5*i, 5*i - 7 = 2*r. Solve r*n + 9 = -3 for n.

-3

Let q(t) = t3 - 9*t2 + 10*t - 12. Let a be q(8). Solve 3*y + a = -y for y.

-1

Let m = -5 + -3. Let d be (m + 4)*(-1)/2. Solve -d*y = -y + 5 for y.

-5