Question

Funez, Lianet

Dana's work to solve the equation 0.7x + 8 = 0.3x + 14 is shown.
Given 0.7x + 8 = 0.3x + 14
Step 1
0.4x + 8 = 14
Step 2
0.4x = 6
Step 3
X = 15
Which property did Dana apply to the equation in Step 1 to create the equivalent equation in Step 2?
A distributive property
B substitution property
© subtraction property of equality
D
multiplication property of equality

Answer 1

Subtraction property of equality

Explanation:

The subtraction property of equality refers to balancing an equation by using the same mathematical operation on both sides.