Question

calculate the value of x
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Answer 1

Answer:

$we \: know \: that \: \\ sum \: of \: angle = 180 \\ = > 3x - 5 + x + 20 + 65 = 180 \\ = > 4x + 80 = 180 \\ = > 4x = 180 - 80 \\ = > 4x = 100 \\ = > x = 25$

I hope it will be helpful

Answer 2

3x-5+x+20+65=180

4x=180-80

4x=100

x=25