KitSoundwave

12+15=27

27-25=2 people but we want to know the percent

2/25=0.08=8%

just plug all of them in, lol. 

(-8)(4)(2)+(-32)=-96 

30/2=15 miles in 1 min

number of degrees in a hexagon = 720deg

720-119-129-104-139-95=134 degrees

interior angles of a pentagon = 540deg

so we set up the equation (7x+4)+(5x+4)+(4x+9)+(9x-6)+(4x+1)=540

combine like terms and simplify and divide both sides by 29 to get 528/29

ok since we know that x=y we only need to solve for x and then y would be the same thing

so we basically just solve the equation -3x-y=4 (divide both sides by -4 to get x=-1) and y would be the same thing as x. 

FOR X: write 5x in terms of y, add -4x to both sides to get x=9

FOR Y: substitute 9 -> y=5x to get y=45

@catmg what about y: 

FOR X: write 8x in terms of y, add -10x to both sides, and divide both sides by -2 to get x=2

FOR Y: substitute 2 -> y=8x, simplify to get y=16

FOR X: write 3x-y=10 in terms of y, add -3x from both sides, and divide both sides by -1 to simplify it down to y=3x-10. then, write 3x-10 in terms of y, add -3x to both sides, and divide both sides by -1 to get x=10

FOR Y: substitute 10 in terms of y and simplify to get x=20