Question

Which property justifies the following statement?

If x = 2, and y = 3x - 11, then y = 3.2 - 11.
Subtraction Property of Equality
Substitution Property of Equality
Division Property of Equality
Addition Property of Equality

Answer 1

substitution property of equality

Explanation:

im assuming this means that you substitute x's value of 2 into the equation y=3x2-11. i'm guessing that it's meant to be 3x2, instead of 3.2. i hope this makes sense, and i hope i answered it as you needed!

Answer 2

substitution property of equality

Explanation:

if

x = 2

y = 3x - 11

then

y = 3 x 2 - 11

2 was substituted for x