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PolarNik [594]
2 years ago
13

Find the value of x.

Mathematics
2 answers:
Alekssandra [29.7K]2 years ago
8 0

Answer:

x = 11

between two parallel lines the angle is 180°

<u>solve</u>:

→ 7x + 2° + 10x - 9° = 180°

→ 10x + 7x +2° - 9° = 180°       [ collect variables ]

→ 17x -7 = 180°                        [ simplify ]

→ 17x = 180° + 7°                     [ change sides ]

→ 17x = 187°                            [ divide both sides by 17 ]

→ x = 11

mylen [45]2 years ago
4 0

Answer:

d

Step-by-step explanation:

7x + 2 and 10x - 9 are same- side interior angles and sum to 180° , that is

7x + 2 + 10x - 9 = 180

17x - 7 = 180 ( add 7 to both sides )

17x = 187 ( divide both sides by 17 )

x = 11 → d

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