31-10-2017
Mathematics

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Find the value of xx that makes m ∥ n.

Find the value of xx that makes m n class=

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31-10-2017

The two angles are same side interior angles.
If the lines are parallel, they are supplementary.
The sum of the measures of supplementary angles is 180.

150 + 3x - 15 = 180

135 + 3x = 180

3x = 45

x = 15

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