Question

guyz pls help if u will help i will mark ur ans as brainliest ans
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Answer 1

Step-by-step explanation:

$(i)90 + 30 + x = 180 - - - - - > angle \: sum \: property \\ 120 + x = 180 \\ x = 180 - 120 \\ x = 60$

$3x + 5x + x = 18 \\ 9x = 180 \\ x = \frac{180}{9} \\ x = 20$