samcooks68 samcooks68

25-01-2021
Mathematics

contestada

Can you please solve for x

Can you please solve for x class=

Respuesta :

clarch19 clarch19

25-01-2021

Answer:

x = 39

Step-by-step explanation:

let [180 - (31 + x)] = 3rd angle inside triangle; simplified is '149 - x'

the (2x - 8) angle and '149 - x' angle are supplementary, thus add to 180

2x - 8 + (149 - x) = 180

2x + (-x) + (-8) + 149 = 180

x + 141 = 180

x = 39

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