Question

What is the justification for step 2 in the solution process?

12y - 40 - 4y = 6y - 18
Step 1: 8y - 40 = 6y - 18
Step 2: 2y - 40 = -18
is it a multiplication , subtraction , division , or addition property of equality ?

Answer 1

Subtract property of deviation becasue your subtracting 6y frrom both sides of the equation.

Explanation:

1)Given: 12y - 40 - 4y = 6y - 18

2)Simplify by adding 12y + (-4y): 8y - 40 = 6y - 18

3)Subtract property of deviation: 8y -6y - 40 = 6y -6y - 18

2y - 40 = -18

Hope this helped!

Answer 2

C. the addition property of equality

Explanation: