1a) 3(x+11) =2x+13
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1b) -5(x+10) =5-10x
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1c) 6(2-x) = -4x+2
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2a) 2分之p-2 =p
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2b) 3分之6-p =p+6
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2c) 8-p = 5分之p+16
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3a) 2分之4q+2 = q+4
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3b) 10-2q = 9分之5q-2
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3c) 4分之6-2q = 14+2q
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4a) 3分之a+3 = 4分之a-4
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4b) 3分之10-a = 2分之a+10
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4c) 8分之1-a = 3分之a-12
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