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Sagot :
Step-by-step explanation:
- straight angle=180°
so, the equation is=(3x+20°)+(4x-36°)=180°
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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