3x+4y=55
y=2x
-10x+y=6
2y+5x=17
y-7x+18=0
3x+y-2=0
x-4y=12
x-6y=2
2 7/8 + 3 1/3 =
2x+y=18
-4x+y=6
X^2+(1.492*X-1148.5)^2+1.492*X^2-1148.5*X=2500^2
y=3x-4 and y=6-x
3y-x=-1
-y+x=11
x-2y=15
x-3=4y
