nerd52 nerd52
  • 01-10-2018
  • Mathematics
contestada

Is 1x+4=10 20-11=11 7+10=17
True false or open?

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datgamer13
datgamer13 datgamer13
  • 01-10-2018

The first equation is open, since it has an unsolvable variable. 1x could be anything!

The second equation is false, because 20 - 11 = 9    not 11.

The last equation is true,  7 + 10 does equal 17!

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suspho
suspho suspho
  • 01-10-2018

1x + 4 = 10

x = 10 - 4

x = 6 (true)

--------------------

20 - 11 = 11

20 - 11 = 9 (false)

-----------------------

7 + 10 = 17 (true)

Answer Link

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