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13 November, 11:02

Without solving them, say whether these equations have a positive solution, a negative solution,

a zero solution, or no solution.

Positive solution = the answer is a positive number.

Negative solution = the answer is a negative number.

Zero solution = the answer is zero.

Negative solution = the variable goes away, so you can't solve it.

a. 3x=5

b. 5z+7=3

c. 7-5w=3

d. 4a=9

e. y=y+1

+5
Answers (1)
  1. 13 November, 11:37
    0
    a. 3x=5 Positive Solution

    Reasoning: You're working with only positives

    b. 5z+7=3 Negative Solution

    Reasoning: If you carry the 7 over the non-coefficient numbers will be negative thus making your answer negative

    c. 7-5w=3 Positive Solution

    Reasoning: both the coefficients and the non coefficients will be negative if solved and thus will result in the negatives becoming positive when dividing the 5w

    d. 4a=9 Positive

    Reasoning: The first step would be to divide the 9 by 4 and the resulting number would be positive

    e. y=y+1 Negative Solution (No solution)

    Reasoning: y can never equal itself with changing. Thats like saying 0 is 1. This has no solution but based on the rules this is negative solution
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