Question

Which equation can replace 3x + 5y = 59 in the original system and still produce the same solution?
2x - y = -4
10x - 5y = -20
7x = 39
13x = 39

Answer 1

Step-by-step explanation:

Among the choices, it is easier to substitute 3x + 5y = 59 with one of the choices to see if they yield the same solution set. From trial-and-error, the equation that can replace the original equation is " 13x = 39