beatryzruizovfmmm beatryzruizovfmmm
  • 23-02-2018
  • Mathematics
contestada

Tell whether the statement below is always, sometimes, or never true. Equation like, a + 4 = 8 and 4 - m = 2 have exactly one solution.

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iGreen
iGreen iGreen
  • 23-02-2018
a + 4 = 8

a = 4

Can you add anything else to 4 to get 8? No.

4 - m = 2

-m = -2

m = 2

Can you subtract anything besides 2 from 4 to get 2? No.

So the statements are always true.
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