Respuesta :
Answer:
D. {-2,12}
Step-by-step explanation:
you have to the equation with the answer being both negative and positive because it is absolute value...
c-5= 7 c-5= -7
add 5 to both sides on both equations
c-5= 7 and c-5= -7
+5 +5
c= 12 and c= -2
This probably doesnt help that much i tried.... :)
Answer:
[tex] \huge \: x = \{ - 2, 12 \}[/tex]
Step-by-step explanation:
to understand this
you need to know about:
- absolute value
- absolute value equation
- PEMDAS
tips and formulas:
- [tex] |u| = a < = > u = ±a \: (always)[/tex]
given:
- [tex] |c - 5| = 7[/tex]
to find:
- [tex]c[/tex]
let's solve:
[tex]step - 1 : define[/tex]
[tex] |c - 5| = 7[/tex]
[tex]step - 2 : \\ rewrite \: the \: absolute \: value\: equation \: as \: two \: separare \: equation[/tex]
[tex]c - 5 = 7 \\ c - 5 = - 7[/tex]
[tex]step - 3 : simplify[/tex]
[tex]c = 12 \\ c = - 2[/tex]
[tex] \huge \: x = \{ - 2, 12 \}[/tex]