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a = -2 + 8
a = 6
2. 9 = -1 + t
t = -1 - 9
t = -10
3. -9a + 5 = 4a + 3
-9a - 4a = 3 - 5
- 13a = 2
a =
4. 2x - 14 = 7x - 12
2x - 7x = -12 + 14
- 5x = 2
x =
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-8+2 = a
-6 = a
2. 9 = -1 + t
9+1 = t
10 = t
3. -9a + 5 = 4a + 3
-9a - 4a = 3 - 5
-13a = -2
a = 2/13
4. 2x - 14 = 7x - 12
2x - 7x = -12 + 14
-5x = 2
x = 2/-5