Question

Solve for x: −2x + 5 < 7 (1 point)

x > −1

x < −1

x > −6

x < −6

Answer 1

-2x +5 < 7
-2x < 2 . . . . . . subtract 5
x > -1 . . . . . . .. divide by -2, which reverses the relationship

The 1st selection is the correct one.

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Check
Choose x = 0 > -1.
.. -2*0 +5 < 7
.. 5 < 7 . . . . . . . . . . true

Choose x = -1, not in the solution set.
.. -2*-1 +5 < 7
.. 7 < 7 . . . . . . . . . . not true, as expected