105k views
3 votes
I need help I keep getting it wrong !!

I need help I keep getting it wrong !!-example-1
User Lollo
by
9.0k points

2 Answers

2 votes
add 5 to both sides
5+13≤z+5-5
18≤z+0
18≤z
User Yo
by
8.3k points
7 votes
18 greater than or equal z
You change the sign because the negative number becomes positive on the other side.
User Alan Forsyth
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7.7k points