Math, asked by ayusshopgammer, 6 months ago

Explain me step by step ​

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Answered by pitam93
0

Step-by-step explanation:

3x+5+90=7x-9

3x+95=7x-9

7x-3x=95+9

4x=104

x=26

hope it help

Answered by riyabante2005
1

Step-by-step explanation:

In triangle ABC,

angle A =(3x+5)°,........1

angle ACD =(7x-9)°, ............2

angle B =90°

from equation 1 and 2

angle ACD=angle A + angle B......................... property of exterior angle of the triangle that exterior angle is equal to sum of remote angles.

(7x-9)=(3x+5)°+90°

7x-9=3x+5+90

7x-3x=5+9+90

4x=14+90

4x=104

x=104/4

x=26°

put x=26° in equation 2

angle ACD =(7x-9)°

angle ACD=7×26-9

angle ACD=182-9

angle ACD=173°

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