Question

find the value of x in the following diagram​

Answer 1

Step-by-step explanation:

90+4x+x=180 (linear pair)

5x=180-90

x=90/5

x= 18

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Answer 2

Answer:

18

Step-by-step explanation:

value of x is 18

$4x + x = 90 \\ 5x = 90 \\ x = 90 \div 5 \\ x = 18$