Question

pls answer fast..
pls help guys​

Answer 1

hope it will help

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Answer 2

answer= 20°

Step-by-step explanation:

straight angle= 180°

so, 40+ 4x+3x should be 180°

40+ 7x =180°

180°-40°=7x

140°= 7x

x= 140°÷7

x= 20°