Consider the sequence of steps to solve the equation: 5(x - 3) = 7x 2 step 1 ⇒ 10(x - 3) = 7x step 2 ⇒ 10x - 30 = 7x step 3 ⇒ 3x - 30 = 0 step 4 ⇒ 3x = 30 step 5 ⇒ x = 10 identify the property of equality which gets us from step 3 to step 4.

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236