Question

Halle x si: CD+3AC=46

|`````````````````````````````30````````````````````````````|
|-------//-------•-----//------•----------------|
A. B. x C. D

a)4. b)3. c)2. d)5. e)1

Answer 1

AB= x
BC=x
CD= y

CD +3AC= 46
y+ 3(2x)=46
y+6x= 46

usamos el sistema de ecuaciones 

y+6x= 46
- (y+2x= 30)

y+6x= 46
-y-2x= -30
----------------
 4x = 16
   x= 4 

Answer 2

Respuesta:

Explicación paso a paso: