equations review

Combining like terms

100

-5s - 15s

what is -20s

200

2b - 3b + 6b

what is 5b

300

6abc - 2bc + 6abc - 3bc

what is 12abc -5bc

400

3(a - 6) + 2(ab +3a - 6ab)

what is 9a -10ab -18

500

4.2a -3.5b -(1.8a + 2.7b - 1.9)

What is 0.7a - 0.8b + 1.9

integers

100

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

what is 4

200

-8  -  (-1)

What is -7

300

(12 – 8)  +  -32  +  4  -  (-6)

What is -13

400

(4.7 – 4.9) - 12.8 - (-0.2) =

What is -12.8

500

-6a + 2c - (2.8c - 7.8a)- 6ac + 2c

What is 1.8a + 1.2c - 6ac

Solving 1 step equations

100

y - 5 = 12

What is 17

200

-3.5x = 42

What is -12

300

-45x=540

What is -12

400

After paying $5.12 for a salad, Jimmy has $27.10. How much money did he have before buying the salad?

What is  $32.22

500

Amanda and her best friend found some money buried in a field. They split the money evenly, each getting $24.28. How much money did they find?

What is $48.56

Two step equations

100

4(a - 2) = 20

What is 7

200

-5y - 32 = -7

What is -5

300

2.5(x - 4) = 2

What is 4.8

400

0.6r + 22 = 127

What is 175

500

3(-3x + 2) + 2x - 4= -12

What is 2