2 Answers

Gabriele Petrioli · Answer 1 · 2015-08-20T04:45:10+0000

so a number degreased by -5 means a number +5 so
x-(-5)
is at least 7
x+5>7
so subtract 5 from both sides
x>2
the solution is any number more than, and including, 2

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