Emmanueljeanbaptiste Emmanueljeanbaptiste

01-11-2019
Mathematics

contestada

Find the value of x.

70

20

38

55

Find the value of x 70 20 38 55 class=

Respuesta :

jimrgrant1 jimrgrant1

01-11-2019

Answer:

x = 20

Step-by-step explanation:

Since one part of the straight angle = 90°, then

4x - 10 + x = 90, that is

5x - 10 = 90 ( add 10 to both sides )

5x = 100 ( divide both sides by 5 )

x = 20

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