Well.... collect like terms
y+(4+7) than you simplify it y+11 so what is 11+7??
its 18!!!
119.9 degree
i used the pythagorean theorem to find it
<span>3x+5 =y
</span><span>3= 2(3x+5) +x
</span>3=6x+10+x
3=7x+10
-7=7x
x=-1 :))
Yep you have done it correctly
