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Solving One Step Equations
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Combining Like Terms
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100

5x = 10

x = 2

100

2x - 5 = -9 

x = -2

100

3x + 2x - 9 

5x - 9

100

(1/2) + (3/2)

2

100

what is the C.O.P 

y = 5x 

5

200

-4x = 16

x = -4

200

-4x - 10 = 30

x = -10

200

6x - 10 + 4x - 4

10x - 14

200

(4/5) + (2/10)

1

200

2 + -16 - 3 

-17

300

y - 6 = 2

y = 8 

300

-42 = -8x + 4

x = 6

300

3x + 4 - 10

3x - 6

300

(1/3) X (4/3) 

4/9

300

-2 x 4 + 3 

-5

400

v + 3 = -9 

v = -6

400

35 = -5x + 10 

x = -5

400

5x + 3x - 2 - 4x 

4x - 2

400

(1/6) x 2

(1/3)

400

What is 30% of 50? 

15

500

-7x = -21

x = 3

500

14 - 3x = -7

x = 7

500

4x - 9 + 5x - 3x + 2

6x -7

500

(2/3) + (1/4) 

11/12

500

Bea goes out to eat at McDonalds. Her total bill is $15.50


-She leaves a 20% tip, on the total before tax.

-The tax was 7.5%. 

What is the total cost of her meal? 

$19.76