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10 February, 01:30

What is th evalue of the expression when b=5

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  1. 10 February, 04:36
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    B (2b-4)

    b=5

    The way to solve a simultaneous equation is to substitute the number value of the given letter into the expression. It then becomes 5 (2 (5) - 4).

    you can put this into your calculator or just work it out by hand.

    5 (2 (5) - 4) = 30

    5x (2x (5) - 4)

    5x (10-4)

    5x (6)

    =30
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