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Answer:
1. 6
2. ∆URE or ∆ERU
3. ∆SER or ∆RES
4. line SE or line ES (can't find the symbol for line)
5. line RE or line ER (can't find the symbol for line)
6. 7
7. angle E (can't find the symbol for angle)
8. (anything higher than 100°)
9. 45°
10. measure of line UR or RU (please do write it in symbol)
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11. x = 4
Solution:
6x - 9 = 4x - 1
6x - 4x = -1 + 9
2x = 8
[tex] \frac{2x}{2} = \frac{8}{2} [/tex]
x = 4
12. x = 3
Solution:
9x - 4 = 7x + 2
9x - 7x = 2 + 4
2x = 6
[tex] \frac{2x}{2} = \frac{6}{2} [/tex]
x = 3
HOPE IT HELPS:))