Round One

Knock Out Proportions

Round One

2) x + 3 = 152Answers

2.) x + 3 = 15 X=12213Round Two

4Answers

54

1.)10x = -40 X=-42.)15x = -675 X=-453.)-12x = 504 X=424.)45x = 945 X=21145Round Three

6Answers

1.)8(x-8)=8 8x-64=8 8x = 72 x = 92.)6(x-7)=-126 6x-42=-126 6x = -84 x = -143.) 64(x+10) = 2304 64x+640 = 2304 64x = 1664 x = 264.)28(x+9)=168 28x+252=168 28x = -84 x = -3187Round Four

8Answers

27

1.)6(2x+9)=162 12x+54 = 162 12x = 108 x = 92.)14(3x+55)=560 42x+770 = 560 42x = -210 x = -53.)6(3x+5)=120 18x+30 = 120 18x = 90 x = 54.)21(2x+20)=42 42x+420 = 42 42x = -378 x = -909Round Five

10Answers

121.)18(x+4)=48(x-6) 18x+72 = 48x-288 -30x = -360 x = 123.)35(x+19)=14(x+37) 35x + 665 = 14x + 518 21x = -147 x = -74.)36(x+6) = 39(x+4) 36x+216=39x+156 -3x = -60 x = 202.)1(x+14)=3(x+6) x + 14 = 3x + 18 -2x = 4 x = -22311Round Six

12Answers

1.)15(3x)=90 45x = 90 x = 24.)3(2x) = 30 6x = 30 x = 53.)8x = 44 x = 5.52.)-50x = 425 x = -8.5413Round Seven

14Answers

1.)3(x+4) = 36 3x + 12 = 36 3x = 24 x = 84.) -2(5x) = 440 -10x = 440 x = -443.) 25x = -5250 x = -2102.) 3x = 2160 x = 72047415Round Eight

16Answers

1.)80(x+2)=640 80x + 160 = 640 80x = 480 x = 63.)2(x+1) = 12 2x + 2 = 12 2x = 10 x = 54.)30(2x+10)=900 60x+300=900 60x = 600 x = 102.)28(x+4)= 168 28x + 112 = 168 28x = 56 x = 22317Round Ninex + 7 = 10

x 3 = 12

x + 8 = 15

x 2 = 27

18Answers

1.)60(5x+12)=4320 300x +720 =4320 300x = 3600 x = 124.)54(3x-9)=1944 162x-486=1944 162x = 2430 x = 153.)30(x-2) =90 30x 60 = 90 30x = 150 x = 52.)20(2x+5)=420 40x+100=420 40x = 320 x = 84019Round Ten5 + x = 15

17 = x 4

19 = x +7

X 13 = 1

20Answers

2.) 54(2x-1)=27(3x+3) 108x-54=81x+81 27x = 135 x = 5

1.)14(5x+5)=35(x+12) 70x+70=35x+420 35x = 350 x = 104.) 35(-4x-2)=14(5x+25) -140x-70=70x+350 -210x = 420 x = -23.)18(4x+36)=36(-2x+6) 72x+648=-72x+216 144x = -432 x = -31021