equations

1 step

100

Solve 

4x = 20

x=5

200

Solve 

x + 4/11 = 7/8

45/88

300

y - 4.7 = 6.2 

10.9

400

-6 = b/18

b = -108

500

Lisa is cooking muffins. The recipe calls for 7 cups of sugar. She has already put in 2 cups. How many more cups does she need to put in?

5 cups of sugar 

2 step

100

9x -7 = -7

x = 0

200

-4 = r/20 - 5

r = 20

300

a/4 + 2 = 6

a = 16

400

 

(v+9)/3 = 8

v = 15

500

 You bought a magazine for $5 and four erasers.  You spent a total of $25.  How much did each eraser cost?

$5

distribution

100

-6(a + 8)

-6a - 48

200

-8(-4 -3n)

32 + 24n

300

5(3m -6)

15m -30

400

-4(-6 + 7)

24p - 28

500

5(1-7n)

5 - 35n

combining like term

100

-8x -11x

-19x

200

4p + 2p 

6p

300

12r + 5 + 3r - 5

15r

400

-3x - 9 + 15x

12x - 9

500

n + 4 - 9 - 5n

-4n - 5

anything

100

-3 -7(-3-6v)

18 + 42v

200

7(5n -8) + 6(4+6n)

71n - 32

300

  On Tuesday Shanice bought five hats.  On Wednesday half of all the hats that she had were destroyed.  On Thursday there were only 17 left.  How many did she have on Monday?

29 hats

400

-5(x+2) +5(x-5)

-35

500

Aliyah had some candy to give to her four children.  She first took ten pieces for herself and then evenly divided the rest among her children.  Each child received two pieces.  With how many pieces did she start?

18 pieces of candy