Suppose 15 = 4*a - a. Let c = -6 + a. Let z be c/(-3) - (-4)/6. Solve 0 = 5*w - z + 21 for w.

-4

Let r = 158 + -156. Solve r*w = 4*w for w.

0

Suppose 2*y = 4*s - 7*s - 9, 4*y = -5*s - 13. Solve -6 = y*a - 3 for a.

-1

Let y(i) = 2*i + 3. Let r be y(-2). Let h = 4 + r. Solve -h*m + 5 = -4*m for m.

-5

Let m© = -2*c**2 + 7*c + 4. Let o be m(4). Solve 3*a + o*a = -6 for a.

-2

Suppose -8 = -2*k + 2. Solve 0*p = p + k for p.

-5

Let o = -8 + 8. Solve 0 = -o*r + r + 1 for r.

-1

Suppose -2*y + 3*v + 0 + 5 = 0, y - 5 = 4v. Let w be (y - 4)(-4)/4. Solve -7 = -w*z - 19 for z.

-4

Suppose -7*j + 0*j = -14. Solve 3*g = -j*g for g.

0

Let v(z) = 2*z**2 + 20*z - 20. Let a be v(1). Suppose 4*d - d = 6. Let j = 2 - d. Solve a*r = -j*r for r.

0