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One-step equations
Two-step equations (Double Jeopardy)
How many solutions?
Squares and roots
100

8+x=12

4

100

5x+12=27

3

100

parallel lines on a graph have... 

no solution

100

4^2

16

200

4x=-16

-4

200

(x+5)/3=10

25

200

two lines that intersect at one point have... 

one solution

200

square root of 64

8

300

-11x=-132

12

300

8x+3=35

4

300

y=2x+6

y=2x+6

infinite solutions

300

square root of 49

7

400

x/5=30

150

400

(30+x)/3=15

15

400

y=3x

y=-5x

one solution

400

11^2

121

500

10-x=15

-5

500

4(2-x)=16

-2

500

y=8x+4

y=8x+2

no solution

500

square root of 225

15