afranklin1383 afranklin1383

29-09-2021
Mathematics

contestada

Can someone tell me the answer to this?

Can someone tell me the answer to this class=

Respuesta :

GeothermalBroom GeothermalBroom

29-09-2021

Answer:

x = 3 . (the angle size is 21 + 18 = 39)

Step-by-step explanation:

7x + 18 + 51 + 90 = 180

18 + 51 + 90 = 159

159 + 7x = 180

-159 -159

7x = 21

/7 /7

x = 3

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