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c'estmoi
Lv 6
c'estmoi asked in Science & MathematicsMathematics · 10 years ago

Help with math/algebra problem!?

The answer is supposedly 66, but I keep getting -66.... am I right or wrong? THANKS math friends!

-6 + 4(10b - 11) - 8(5b + 2)

Update:

It just needs to be simplified....

I got this:

-6 + 40b - 44 -40b -16

-6 - 44 -16 = -66

Update 2:

Thanks! I have the answer key, but it is photocopied, so maybe the - sign is too faint. Appreciate it!

2 Answers

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  • Arturo G
    10 years ago
    Favorite Answer

    -6 + (40b - 44) - (40b +16)

    40b - 50 - 40b - 16

    -66

    I also arrive at -66. Perhaps the book answer is wrong, which does happen.

  • Anonymous
    10 years ago

    Impossible to solve this equation because it is incomplete.

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