Question

What is the property that justifies If 3x = 6, then x = 2?

Answer 1

the would be substitution. You plug 2 in for x so the equation would be, 3(2)=6

Answer 2

Answer: Division property of equality

Explanation:

The division property of equality says that if we divide both sides of an equation by the same nonzero number, the sides remain equal.

Therefore if we have equation
`3x=6`, then we divide both sides by 3 .

So by division property of equality, we get

`\ x=(6)/(3)\\\Rightarrow\ x=2`

Hence, Division property of equality justifies If 3x = 6, then x = 2.