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Answer:
1. x=1
2. x=2
Step-by-step explanation:
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1) 7x - 5 = 2x
=> 7x - 2x = 5
=> 5x = 5
=> x = 5/5
=> x = 1
2) 5x - 12 = 2x - 6
=> 5x - 2x = 12 - 6
=> 3x = 6
=> x = 6/3
=> x = 2
3) 7p - 3 = 3p + 8
=> 7p - 3p = 3 + 8
=> 4p = 11
=> p = 11/4
4) 8m + 9 = 7m + 8
=> 8m - 7m = 8 - 9
=> m = -1
5) 7z + 13 = 2z + 4
=> 7z - 2z = 4 - 13
=> 5x = 9
=> x = 9/5
6) 9y + 5 = 15y - 1
=> 9y - 15y = -1 -5
=> -6y = -6
=> y = -6/-6
=> y = 1
7) 3x + 4 = 5(x - 2)
=> 3x + 4 = 5x - 10
=> 3x - 5x = - 10 - 4
=> -2x = -14
=> x = -14/-2
=> x = 7
8) 3(t - 3) = 5(2t - 1)
=> 3t - 9 = 10t - 5
=> 3t - 10t = -5 + 9
=> -7t = 4
=> t = 4/-7
=> t = -4/7
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