Question

Solve screen shot attachment EASY

Answer 1

Answer:

$x = \frac{-3d-9}{k-d}$

Step-by-step explanation:

Step 1: Write out equation

d(-3 + x) = kx + 9

Step 2: Distribute d

-3d + dx = kx + 9

Step 3: Subtract 9 on both sides

-3d + dx - 9 = kx

Step 4: Subtract dx on both sides

-3d - 9 = kx - dx

Step 5: Factor out x

-3d - 9 = x(k - d)

Step 6: Divide both sides by k - d

$x = \frac{-3d-9}{k-d}$