3 years ago

Given m||n, Find the value of x. Need help.

Mathematics

1 answer:

scoray [572]3 years ago

4 0

9514 1404 393

Answer:

x = 12

Step-by-step explanation:

The two marked angles are a linear pair, so are supplementary.

(8x -20)° +(8x +8)° = 180°

16x -12 = 180 . . . . . . . . . . . divide by °, collect terms

16x = 192 . . . . . . . . . . . add 12

x = 12 . . . . . . . . . . . divide by 16

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