Let f = 42 + -18. Suppose 15 = -5*u, 0*z + f = -3*z - 2*u. Let h = 12 + z. Solve -2*x + 0*x + h = 0 for x.

Let g be 1/(-4) - 9/(-4). Let h be 0/(-5 + ³⁄₁). Suppose -2 + h = -y. Solve -g*i + 4 = -y for i.

3

Let j be ⁷⁄₂ - (-1)/(-2). Suppose 2*y - 2*w - 8 = -0*y, -2*w + 7 = j*y. Suppose 4*z = 2*n - 5*n - 11, z = -2*n + 1. Solve -n*u + 9 = y for u.

2

Suppose -2*u - 13 - 1 = 0. Let l be ²⁷⁰⁄₃₅ + (-2)/u. Let a = 12 - l. Solve 8*x - a = 4*x for x.

1

Let m(d) = -d**2 - 10*d - 19. Let q be m(-6). Solve 4*x = -x - q for x.

-1

Let a be 1*0/3*⁶⁄₂₄. Solve a = -6*o + 3*o - 9 for o.

-3

Let z(x) be the first derivative of -x⁴⁄₄ + 7*x³⁄₃ + 2*x + 3. Let l be z(7). Solve -g + 3 = -l for g.

5

Let b be (-3 - -5) + -4 + -1. Let s = b + 5. Solve 0*g - 8 = s*g for g.

-4

Suppose 3*w - 2 = 1. Let h = -86 - -88. Solve d - w - h = 0 for d.

3

Let i be ³⁷¹⁄₇₇ + (-4)/(-22). Solve 2*w + i = 3*w for w.

5

Let p(d) = 11*d + 59. Let w be p(-5). Solve n + 3 = w for n.

1