Answer :

Step-by-step explanation:

  • straight angle=180°

so, the equation is=(3x+20°)+(4x-36°)=180°

profereyes12122

Answer:

(b) 28°

Step-by-step explanation:

The sum of the supplementary angles is equal to 180°

(3x+20)° + (4x-36)° = 180°

[tex]7x-16=180[/tex]

[tex]7x=180+16[/tex]

[tex]7x=196[/tex]

[tex]x=196/7[/tex]

[tex]x=28^{0}[/tex]

Hope this helps

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