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3 September, 18:20

13. which equation has no solution?

a) 8 - (5v+3) = 5v-5

b) 3m-6=5m+7-m

c) 3w+4-w=5w-2 (w-2)

d) 7y+9=7y-6

+5
Answers (2)
  1. 3 September, 18:36
    0
    a) 8 - 5v-3 = 5v-5

    -5v+5 = 5v-5

    identity

    b) 3m-6 = 4m+7

    has 1 solution

    c) 2w + 4 = 5w - 2w + 4

    2w+4 = 3w+4

    w=0

    one solution

    d) 7y+9 = 7y-6

    subtract 7y from each side

    9=-6 impossible

    no solution

    Choice D
  2. 3 September, 18:44
    0
    The answer is letter D
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