Square both sides. (5-2x) - (2-x) = 1^2. 5 - 2x - 2 + x = 1. Simplify to get 3 - x = 1. X=2
M8 =43.
Reason:
134+ M8 =180(degrees). This is because angles on a straight line =180 (degrees)
180-134=M8
Therefore:
M<8 =180-134= 43 (degrees)
Hope this helps and makes sense.
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