Question

Z + 6 over 3 = 2z over 4

Answer 1

    $\frac{z + 6}{3}$ = $\frac{2z}{4}$   Multiply both sides by 3
    z + 6 = $\frac{(3)2z}{4}$   Multiply both sides by 4
(4)z + 6 = (3)2z   Simplify
4z + 24 = 6z   Subtract 4z from both sides
        24 = 2z   Divide both sides by 2
         12 = z     Flip the sides to make it easier to read
          z = 12