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Sagot :
Solution:
Note that:
- 3x + 50 = 6x - 10 (Vertically opposite angles)
Simplify the equation to find x.
Add 10 both sides.
- 3x + 50 = 6x - 10
- => 3x + 50 + 10 = 6x - 10 + 10
- => 3x + 60 = 6x
Subtract 3x both sides.
- 3x + 60 = 6x
- => 3x - 3x + 60 = 6x - 3x
- => 60 = 3x
Divide 3 both sides.
- 60 = 3x
- => 60/3 = 3x/3
- => x = 20
Answer:
x = 20
Step-by-step explanation:
opposite angles = equal angles
we solve with a proportion
3x + 50 = 6x - 10
50 + 10 = 6x - 3x
60 = 3x
x = 60 : 3
x = 20
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