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aboveit

  • 2 years ago

Which equation is equivalent to 5x-2(7x+1)=14x A. -9x-2=14x B. -9x+1=14x C. -9x+2=14x D. 12x-1=14x I don't understand how I solve it. An explanation or steps would be most appreciated.

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  1. Bibhor
    • 2 years ago
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    it is A

  2. Grazes
    • 2 years ago
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    |dw:1335226137858:dw| sorry for the cruddy handwriting.

  3. Bibhor
    • 2 years ago
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    5x-2(7x+1)=14x 5x - 14x-2 =14x -9x-2 = 14x

  4. aboveit
    • 2 years ago
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    Thank you all :)

  5. mubzz
    • 2 years ago
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    Simply do algebraic multiplication of the terms inside the parenthesis. So your steps would be 1) 5x - 2(7x+1) 2) 5x -[ (2*7x) + (2*1)] 3) 5x - [14x + 2] (the subtraction sign before the squared bracket means everything inside the bracket will be multiplied by '-1] 4) 5x - 14x -2 5) -9x -2 Hence the answer for this is 'A'

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