20 points on the line Determine whether the statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement.

To solve the system below by substitution, replace y in the second equation with 7−6x.

6x−y=7

2x+y=5

This statement is true.

This statement is false. To solve the system by substitution, replace x in the second equation with 7−6x.

This statement is false. To solve the system by substitution, replace y in the first equation with 7−6x.

This statement is false. To solve the system by substitution, replace y in the second equation with 6x−7.