Question 598069
-13x + 13 > 78
Subtract 13
-13x > 65
Divide by 13
-x > 5
Divide by -1
x < -5
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you can do it like this, too, if there's some question about the sign change:
-x > 5
Add x
0 > x + 5
Subtract 5
-5 > x
--> x < -5