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18-10-2021
Mathematics

contestada

solve for x
a) 10
b) 40
c) 28
d) 58

solve for x a 10 b 40 c 28 d 58 class=

Respuesta :

jimrgrant1 jimrgrant1

18-10-2021

Answer:

a

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180

x + 18 + 4x + 112 = 180 , collect like terms

5x + 130 = 180 ( subtract 130 from both sides )

5x = 50 ( divide both sides by 5 )

x = 10

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