Foundations 2.1 Quiz Review

A

100

3(x+2)-4=2x+7

x=5

200

(3/8)=(x/24)

x=9

300

3x-7=3x-7

∞

400

4x+6=10

x=1

500

4/18=(2x+10)/(x+15-2x)

x=-3

B

100

3/5(x+10)=4x

x=30/17

200

3a-2=14a-13

a=1

300

2(y+4)-3=y+5

y=0

400

Double Points

4(y-3)+2y=3y-5

y=7/3

500

4(x+3)-5=4x+10

ø

C

100

Double Points

(4-x)/4=(2x)/8

x=2

200

8x-(x+2)=12x

x=-2/5

300

4(z-2)+3=3z+5

z=10

400

7(3x+14-x+4)+1=6(x-3)-2(x+10)-8

x=-17.3

500

4(x-2)+7(3-x)=4

x=3

D

100

x=x

∞

200

5x-6=-5x-6

x=0

300

Double Points

3/(x-3)=9/27

x=12

400

3(2x+7)-2=6x-19

ø

500

Double Points

1/2(10x-4)-12x+5(x+1)=1/4(12-12x)+6(1/2x-1)-1

x=7/2