Option 1: 6a = 420 requires division property of equality to be solved Step-by-step explanation: Solving an equation means to find the value of a variable by isolating the variable on one side of the equation. We will see all the options one by one. Option 1:
In this option, 6 is multiplied with the variable so we have to divide the whole equation by 6 to find the value of a. So we will use "Division property of Equality" Dividing both sides by 6