Question

I need the answers pls!

Answer 1

Given:

The equation is

$\dfrac{2a-4}{3}=8$

To find:

The reason for second step.

Solution:

We have,

$\dfrac{2a-4}{3}=8$

Using multiplication property of equality, multiply both sides by 3.

$3\left(\dfrac{2a-4}{3}\right)=3(8)$

$2a-4=24$

Using addition property of equality, add 4 on both sides.

$2a-4+4=24+4$

$2a=28$

Using division property of equality, divide both sides by 2.

$\dfrac{2a}{2}=\dfrac{28}{2}$

$a=14$

So, the reason for second step is multiplication property (=).

Therefore, the correct option is D.