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Answered

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Timothy was trying to find the measure of above. His answer was 7º. He is confused as he cannot
understand why m Justify your answer.

ANSWER ASAP PLEASE Timothy Was Trying To Find The Measure Of Above His Answer Was 7º He Is Confused As He Cannot Understand Why M Justify Your Answer class=

Sagot :

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Answer:

jim is correct, x does equal 7°. justify your answer by putting seven back into the equation. it gives you back that 180 equals 180, therefore it is correct

Step-by-step explanation:

so, all angles of a triangle have to add up to 180;

(15x) + (8x - 11) + (3x + 9) = 180

15x + 8x - 11 + 3x + 9 = 180

add your common numbers

26x - 2 = 180

add 2

26x = 182

divide 26

x = 7

put it back into the equation

15(7) + 8(7) - 11 + 3(7) + 9 = 180

180 = 180

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