X +10°
2x+20°
find the value of x
Answers
Answered by
0
Answer:
x=-10
Step-by-step explanation:
x+10=2x+20
x-2x=20-10
-x=10
x=-10
Answered by
0
Answer:
X+10°+2x+20°=180°
3x+30° = 180°
3x = 180 - 30
3x = 150°
X =150/3
X =50
X+10°=50+10=60
2x+20=2×50+20=120
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