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togoodtobetrue4u

  • 3 years ago

I need help on this question If 3a + 2b = 7 and 2a + 2b = 9 , what is the value of ?

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  1. kryton1212
    • 3 years ago
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    3a + 2b = 7---(1) 2a + 2b = 9---(2) From (1), a = (7-2b)/3---(3) Sub. (3) into (2), 2[(7-2b)/3]+2b = 9 the solve it

  2. togoodtobetrue4u
    • 3 years ago
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    I have three more I'm having trouble with. If I ask for help one at a time, could you help me?

  3. kryton1212
    • 3 years ago
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    of course :)

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