Question

What value of c makes the statement true?

c – (–17.6) = –4


A.
–21.6

B.
–12.4

C.
12.4

D.
21.6

Answer 1

`c-(-17.6)=-4 \\\\ c+17.6=-4 \\\\ c=-4-17.6 \\\\ \boxed{c=-21.6\to \ variant \ A}`

Answer 2

`c-(-17.6)=-4\\\\c+17.6=-4\ \ \ \ |subtract\ 17.6\ from\ both\ sides\\\\c=-21.6\\\\Answer:\boxed{A}`