Suppose 4*k - 9*k = -80. Solve -3*v + 7*v + k = 0 for v.

Suppose -2*h - 7*o = -2*o - 10, -2*o + 20 = 4*h. Suppose 0*l - h*a - 25 = 4*l, 20 = 5*l - 4*a. Let k be ((-18)/(-5))/(⁶⁄₂₀). Solve -x - 2*x - k = l for x.

-4

Let l© = 2*c3 - 14*c2 - 13*c - 19. Let b be l(8). Solve -b*y = -2*y - 15 for y.

5

Let a(v) = -2*v2 + 25*v + 6. Let s(l) = l2 - 12*l - 3. Let j be 1/((-57)/(-18) - 3). Let f(n) = j*a(n) + 13*s(n). Let d be f(7). Solve 4*u - d = 6*u for u.

-2

Let f be ³⁴⁄₄ + ¹⁄₂. Solve 1 = -2*d - f for d.

-5

Let h be 3 - 3 - (0 + -4). Suppose -20 = -3*g - h*x + 2, 2*x = 2*g - 24. Solve -g = q + 4*q for q.

-2

Suppose -7*t + 80 = 9*t. Solve -3*c = -t*c for c.

0

Suppose -5 = 2*w - 3*o, o - 25 = -w - 3*o. Solve 4*f = -f - w for f.

-1

Let v = 1 + 11. Solve -z = -4*z + v for z.

4

Let s be 0/((6/(-4))/(2/(-4))). Let w be (-2)/(-3) - (-88)/(-6). Let n be (-60)/w + 2/(-7). Solve s = n*k - 3*k - 4 for k.

4

Suppose -g = -4*b + 21, 15 = 5*b - 4*g + 5*g. Let w = 2 - 0. Let s be 0/(w - (0 + 0)). Solve s = b*u - 2*u - 2 for u.

1