what is the property that justifies the statement?
if 3x+4=10 then 3x=6
a. subtraction property of equality
b. addition property of equality
c. division property of equality
d. multiplication property of equality

Question

what is the property that justifies the statement?
if 3x+4=10 then 3x=6
a. subtraction property of equality
b. addition property of equality
c. division property of equality
d. multiplication property of equality

mathstudent55 · Answer

What was done to the first equation to get to the second equation?

Look on the left side.
The first equation has 3x + 4. The second equation has 3x.
What do you do to 3x + 4 to end up with only 3x?

Now look on the right side.
What do you do to 10 to end up with 6?

anonymous · Answer

isnt it subtraction property?

mathstudent55 · Answer

Correct. 
Since 4 was subtracted from both sides of the equation, the answer is A. subtraction property of equality.