Question

Consider the system of equations.

5x+4y=−2
2x−4y=6

Which property could be used to write the equation 7x = 4 as the first step to solving the system of equations?

A. Division Property of Equality
B. Addition Property of Equality
C. Substitution Property of Equality
D. Distributive Property of Equality

Answer 1

Addition property of equality

Explanation:

you are adding like terms to form 7x==4