Question

Steps for solving 5(2x - 8) = 20 are shown.

5(2x-8)= 20
10x - 40 = 20
10x - 40+ 40 = 20 + 40
10x = 60
10x 60
10 10
x = 6
Original Equation

Which of these is not part of the solution process?

Answer 1

D) using the communative property

Explanation:

The communative property is changing the order of the operands which does not change the result.

For example:

6x4=24 and 4x6= 24

We can switch the spots of the numbers but we still get the same answer.

4+9=13 and 9+4=13

We could not do that here or else x would equal another number.

hope this helps :)