anna1848183 anna1848183

03-10-2018
Mathematics

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MollieToliver MollieToliver

03-10-2018

We know that vertically opposite angles are equal

Therefore, 6x-7 = 4x +23

6x -4x = 23 + 7

2x = 30

X = 30/2 = 15

Angle ABC = 6 (15) -7 =90-7 =81

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