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14 September, 11:19

What is (4x+-7) (2x+-9)

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Answers (1)
  1. 14 September, 14:10
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    Answer:x=1

    Step-by-step explanation: (4x+-7) = (2x+-9)

    We move all terms to the left:

    (4x+-7) - ((2x+-9)) = 0

    We add all the numbers together, and all the variables

    (4x-7) - ((2x-9)) = 0

    We get rid of parentheses

    4x - ((2x-9)) - 7=0

    We calculate terms in parentheses: - ((2x-9)), so:

    (2x-9)

    We get rid of parentheses

    2x-9

    Back to the equation:

    - (2x-9)

    We get rid of parentheses

    4x-2x+9-7=0

    We add all the numbers together, and all the variables

    2x+2=0

    We move all terms containing x to the left, all other terms to the right

    2x=-2

    x=-2/2

    x=-1

    (4x+-7) = (2x+-9)

    We move all terms to the left:

    (4x+-7) - ((2x+-9)) = 0

    We add all the numbers together, and all the variables

    (4x-7) - ((2x-9)) = 0

    We get rid of parentheses

    4x - ((2x-9)) - 7=0

    We calculate terms in parentheses: - ((2x-9)), so:

    (2x-9)

    We get rid of parentheses

    2x-9

    Back to the equation:

    - (2x-9)

    We get rid of parentheses

    4x-2x+9-7=0

    We add all the numbers together, and all the variables

    2x+2=0

    We move all terms containing x to the left, all other terms to the right

    2x=-2

    x=-2/2

    x=-1
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