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drummer0121

  • 2 years ago

I need help solving a - 2b = 2 a + b = 2(b + 3) using linear combination

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  1. drummer0121
    • 2 years ago
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    Thank you so much for any help.

  2. ShikhaDessai
    • 2 years ago
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    in the second equation, open up the brackets... the coefficient of 'a' is the same, i.e. 1. u subtract equation two from one, due to which 'a' will be eliminated (since a - a is zero) then u get the value 'b'....so then u substiture the value of 'b' to get the value of 'a'...

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