Hey there! :D
Twice the sum of 13 and x is not greater than 15.
If it isn't greater, than it's less than or equal to.
2(13+x) ≤ 15
Distribute the 2.
26+2x ≤ 15
Subtract 26 on both sides.
2x ≤ -11
Divide both sides by 2.
x ≤ -6.5
I hope this helps!
~kaikers
