Solving Equations

One Step

100

x+10=13

x=3

200

4x=-16

x=-4

300

-8+c=5

c=13

400

n/3=9

n=27

500

(3/4)x=30

x=40

Two Step

100

9b-2=-65

9a=-63

a=-7

200

k/3-11=-5

k/3=6

k=18

300

19-m=30

-m=11

m=-11

400

v/(-0.8)+14=39

v/(-0.8)=25

v=-20

500

-3=(k-5)/16

-48=k-5

-43=k

Square Root

100

x²=25

x = +/- 5

200

y²-10=39

y²=49

y= +/- 7

300

n² + 15 = 15

n²=0

n=0

400

-p²=-324

p²=324

p= +/- 18

500

18 - x²= -151

-x²=-169

x²= 169

x= +/- 13

Challenge (Worth Double)

100

(-5/9)m= 1 11/12

m= -69/20

300

49n²=16

n²=(16/49)

n= +/- 4/7

500

1 (4/15) - (2/3)x²=-12 7/30

(19/15) - (2/3)x² = (-367/30)

-(2/3)x² = (-405/30)

x²=(81/4)

x = +/- 9/2