Suppose -75 + 87 = 3*r. Solve 16 = 4*u - r for u.

Suppose 5*c + 2*a = -578, 2*c + a + 236 = -a. Let k be (c/18)/(1/(-3)). Solve k = 5*u - 1 for u.

4

Suppose 3*x + 7*n - 73 = 5*n, 2*n = 10. Solve 5*w - 6 = -x for w.

-3

Suppose -7*v = -2*v + 2*t - 22, 0 = -3*v + 4*t + 34. Let q = v - 0. Let g(i) = i**2 - 7*i + 8. Let x be g(q). Solve x*r + 2 = -2 for r.

-2

Let r be (-2)/(-4) + ¹⁵⁄₁₀. Let l be (4 - (-9)/(-3))*r. Solve -z + 0*z - l = 0 for z.

-2

Let o(h) be the first derivative of 3*h²⁄₂ - 12*h - 8. Let p be o(5). Let y(x) = 2*x2 + 3*x + 3. Let n be y(-3). Solve -6*r + p*r - n = 0 for r.

-4

Let d = 34 - 30. Solve 6 + 14 = -d*o for o.

-5

Let k = -1 + 3. Solve k*t = -3 - 1 for t.

-2

Suppose -5*l - 3*i = -7, -5*l + 3*i + 14 - 1 = 0. Solve 6*f - l*f + 16 = 0 for f.

-4

Suppose -3*f + 12 + 6 = 0. Solve -5*r + f - 1 = 0 for r.

1

Suppose -3*z - x - 3 = -15, -3*x = 9. Solve z = -2*y + 3 for y.

-1