miaprecious5 miaprecious5

18-09-2019
Mathematics

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A triangle has one angle measuring 3X degrees a second angle measures 2X +20°
And the third angle measures 4X -20° what is the value of X

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dancingtaylor36 dancingtaylor36

18-09-2019

Answer : x = 20

Explanation :
3x + 2x +20 + 4x - 20 = 180

(3+2+4=9)

9x + 20 - 20
The 20s cancel each other out because one is positive and the other is negative

9x = 180

9x/9 = 180/9

X = 180 divided by 9

X = 20

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