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Mathematics 7 Online
OpenStudy (anonymous):

If the measures of three angles in a triangle are (2x+15)º, (10x – 20)º, and (3x + 2)º, then find the value of 15x – 3.

OpenStudy (alexwee123):

a triangle has 3 angles that have the sum of 180 degrees so if those expressions are the angles then adding them will give you the value of x (2x+15)+ (10x – 20)+ (3x + 2)=180 could you solve x for me ?

OpenStudy (anonymous):

sorry, I wasn't here x=12.2

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