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lyudmila [28]
3 years ago
14

Select "ALL" that are right

Mathematics
1 answer:
Leokris [45]3 years ago
5 0
<h3>Answer:</h3>

These steps <em>can</em> be used:

  • combine -6 and 4
  • combine 15 and -3
  • multiply 2 by x and -2
<h3>Step-by-step explanation:</h3>

The equation could be solved as follows:

  2(x -6 +4) = 15 -3                 given

  2(x -2) = 15 -3                      combine -6 and 4

  2(x -2) = 12                          combine 15 and -3

  2x -4 = 12                            multiply 2 by x and -2

  2x = 16                                add 4 to both sides

  x = 8                                    divide both sides by 2

_____

<em>Alternate solution</em>

At step 4, you could have

  x -2 = 6                              divide both sides by 2

  x = 8                                   add 2 to both sides

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