math

(1)Is the Equation true, false, or open?
4y + 8 = 6y + 3

A. True; the expressionas are the same for all values of variables B. False; the expressions are never the same ******
C. Open; there is a varible

(12)Which equation is an Identity

A. 7 - (9x + 3) = -9x - 4
B. 6m - 5 = 7m +5 - m
C.10p + 6 - p = 12p - 3 (p - 2) *****
D. 3y + 2 = 3y - 2

(13)Which equation has no solution?

A. 5w + 4 - w = 9w -2 (w - 2)
B. 3x - 5 = 3x + 8 - x
C. 7z + 6 = -7z - 5
D. 4y + 5 = 4y - 6 *****

(14)Solve the following equation
3(x - 7) - x = 2x - 21

A. 7
B. -2
C. infinitely many solutions *****
D. no solution

(15)Solve the following equation.
4 + 2y = 9 + 2y

A. 4
B. -4
C. infinitely many solutions
D. no solution *****

Answer is *****, if it is wrong can you tell me how to solve it, Thankyou

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  1. 1) C

    Other answers are correct.

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  2. Thankyou, and can you explain to me how it is c

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  3. Mathematical statements with one or more VARIABLES
    are called open sentences.

    In statement:

    4y + 8 = 6y + 3

    variable is y

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  4. And i have one more question that i need help on

    Solve the following equation.
    -4y + 8 = 4 (2y - 2) -2 (-16 + 8y)

    A. y= -4
    B. y= 4
    C. y= -2
    D. y= -6

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  5. - 4 y + 8 = 4 ( 2 y - 2 ) - 2 ( - 16 + 8 y )

    - 4 y + 8 = 4 ∙ 2 y + 4 ∙ ( - 2 ) - 2 ∙ ( - 16 ) - 2 ∙ 8 y

    - 4 y + 8 = 8 y - 8 + 32 - 16 y

    - 4 y + 8 = 8 y - 16 y - 8 + 32

    - 4 y + 8 = - 8 y + 24

    Add 8y to both sides

    - 4 y + 8 y + 8 = - 8 y + 8 y + 24

    4 y + 8 = 24

    Subtract 8 to both sides

    4 y + 8 - 8 = 24 - 8

    4 y = 16

    y = 16 / 4 = 4

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  6. I CANT FIND THE ANSWERS... these answers are apparently not for connexus because my quick check/test only has five questions.

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  7. ???????????????????????????????????????????????????????

    oof.

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  8. if you are taking the connexus, i just took it. they redo the questions everytime you retake the test/quiz. here are the correct answers:
    c
    a
    b
    b
    d
    d
    c
    c
    b
    c
    c
    b
    a
    c
    d
    d
    d
    b
    a

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