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3 votes
Get 14 points, Plz help me with this question, and give the right answer cause it's important

Get 14 points, Plz help me with this question, and give the right answer cause it-example-1
User Vhaerun
by
5.2k points

2 Answers

3 votes

All angles are of triangle and thus give sum of 180⁰

x + 5 + 7x - 5 + x = 180⁰

9x = 180⁰

x = 20⁰

User Alex Morozov
by
5.8k points
5 votes

Answer:

it's 20

Explanation:

(X+5)° + (7x-5)° + x°= 180° { sum of the three angles of the triangle is 180°}

X+5+7x-5+X = 180

X+7x+X+5-5= 180

9x+0 = 180

9x = 180

therefore X= 180/9

= 20

User Andrew Berg
by
4.7k points