Respuesta :

HI + IJ = HJ

=> x + 12 +  16 + x = 20

<=> 2x + 28 = 20

<=> 2x = -8

<=> x = -4

with x = -4 => HI = - 4 + 12 = 8

Step-by-step explanation:

suspho

Answer:

Step-by-step explanation:

20 = 12 + 16 + 2x

20 - 12 - 16 = 2x

-8 = 2x

x = -4

--------------------------------

check

20 = 12 + 16 + 2*-4

20 = 20

the answer is good

Otras preguntas