Explanation:
(2x - 3) + 8x = 180 (linear pairs)
10x - 3 = 180
10x = 180 + 3
10x = 183
x = 183÷10
x = 18.3
1 = 2x - 3
2 × 18.3 - 3
= 33.6
2 = 8x
8 × 18.3
146.4
Angle 1 + Angle 2 = 180
33.6. + 146.4. = 180
:)
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