Let c = -4 + 6. Solve c*v - 15 = -v for v.

5

Suppose 0 = 4*w - 3*w - 4. Suppose 0 = w*q - 21 + 1. Suppose 0 = -2*t + t - q*d - 2, 20 = 5*t - 5*d. Solve 0 = -t*y + 3 + 3 for y.

2

Let s© = 10*c + 4. Let u(b) = 9*b + 3. Let p(a) = 2*s(a) - 3*u(a). Let m be p(1). Let y be (-4)/m - (-7)/2. Solve y*x + 6 = -2 for x.

-2

Suppose -2*y + 2 = -0*y. Let p be 0 + y + 8⁄4. Solve -2*a + 10 = p*a for a.

2

Suppose -8*o = -5*o. Suppose -4*c + 25 = -35. Solve -8*n + 3*n - c = o for n.

-3

Suppose -87 = -3*s + 141. Suppose -25 = 3*n - s. Solve 4*m - 3 = n for m.

5

Let w(u) = u3 + 9*u2 + 3*u + 27. Let k be w(-9). Solve 16 = -k*n + 4*n for n.

4

Suppose 3*x - 2*m - 17 = -0*m, -3*m + 17 = 4*x. Solve 3 = 2*s + x for s.

-1

Let r = -1 - -4. Solve -13 = -2*u - r for u.

5

Let w be ((-12)/(-10))/((-10)/(-25)). Suppose -5 + 2 = -w*a. Solve 2 = 3*n - a for n.

1