Question

Name the property that justifies the statement.
If 4x = 12, then x = 3.
?????

Answer 1

Substitution ?

Answer 2

Substitution would be used to check, but not solve for x

Answer 3

if you multiply both sides by 1/4 to isolate x, then you are using the multiplicative property of equality

http://www.mathwords.com/m/multiplicative_property_of_equality.htm

or if you are dividing both sides by 4 to isolate x, then you are using the division property of equality

http://mrpilarski.files.wordpress.com/2009/09/properties-of-equality-pilarski1.jpg

Answer 4

THANK YOU

Answer 5

np