Three students were given the expression shown to simplify. Use the drop-down menus to complete the statements about whether each student's answer is an equivalent expression. Then choose an expression that is equivalent.

Ciro:
1−80x+24
1-80x+24
Ciro's expression is because .
Gerard:
1−80x−24
1-80x-24
Gerard's expression is because .
Gunther:
−7(10x−3)
-7(10x-3)
Gunther's expression is because .
Equivalent Expression
A correct equivalent expression is .