-5x+2y=6
2y=6+5x
y=5/2x + 6
x+3y=3
3y=3-x
y=-x/3+1
-2x+y=4
y=2x+4
4x+9y=-9
9y=-4x-9
y=-4/9x+1
Hope this helps.
3.3333333333333333333
repeating
I'm not to sure but i think it's 15. this question is worded weirdly
Firstly mines 2x for 2 side
And combine 1 for 2 side
Result 6x^2+17x+5
So
(3x+1)(2x+5)=0
X=-1/3 or x=-5/2
Angle 2 and 4 are vertical angles(opposite) thus they are congruent... set
9x+4=14+8x
9x-8x=14-4
X=10
Now substitute x back into angle 4 and solve