Ignore that I got it wrong I just want to know how to do it because I don't understand it.
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Heya UR ANSWER ⤵️
On line l,
63° + (15x - 3)° = 180° [Straight line=180°]
63 + 15x - 3 = 180
60 + 15x = 180
15x = 120
Hence, x = 8°
On line m,
(8x + 7) = m (angle 1)
m (1) = 8x + 7
= 8(8) + 7
= 64 + 7
HENCE, m (1) = 71°
There ya go.......
Hope it helped......
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