Question

What would be the property of all ( 7=2x-5) (12=2x) and (6=x), which property would they be, Addition property of equality, Subtraction Property of Equality, Multiplication property of equality, Division Property of Equality, or Substitution Property

Answer 1

Explanation

7 = 2x - 5

12 = 2x

6 = x

The movement from the first step to the second step involves adding 5 to both sides.

7 = 2x - 5

7 + 5 = 2x - 5 + 5

12 = 2x

Adding 5 to both sides, is what the addition property of equality means.

Then, the movement from the second step to the third step involves dividing both sides by 2.