P=2(L+W)
if given one side and the perimiter
(P/2)-L=W
(P/2)-W=L
1)
=> <span>m∠2 = 2x +13
=> </span><span><span>m∠1 = </span> 4x - 1
Since YP angle bisector the angles with be equal to each other,
</span>
m∠1 = <span>m∠2
2x + 13 = 4x - 1
2x - 4x = -1 -13
-2x = -14
x = 7
</span>
All other questions are to be done in that way, don't be lazy :P
I'm confused what are you suppose to do
Plus a negative value becomes subtraction:
-12 + -23 = -12 -23 = -35
