Review
TWO STEP EQUATIONS
MULTI-STEP EQUATIONS
VARIABLES ON BOTH SIDES
ONE, NO OR INFINITE SOLUTIONS
100

 4,100,000 in scientific notation  

What is 4.1 x 106


100

4w - 5 = 27

What is w = 8

100
6f + 12 = 24
What is f = 2
100

4(x + 5) = 2x + 12

What is x = -4

100

48x + 43 = 47x + 43

What is one solution (x=0)

200

 4.8-3 in standard form.


What is 0.0048

200

solve for r

4=r/2+6

What is -4 = r

200

3c - c - 5= 5

What is c = 5

200

2m - 4 = 3(4m - 3)

What is m = 0.5

200

8(2x + 5) = 16x + 40

What is infinite solutions

300

Monster A had a weight of 2.4 x 107.  Monster B had a weight of 1.2 x 10-3.  How many times heavier in scientific notation was Monster A than Monster B? 




What is 2 x 1010


300
3 - 2y = 11
What is y = -4
300

8 - 3 - 4x + 8x = -11

What is x = -4

300

a + 3 = 5(2a - 3)

What is a = 2

300

4(9x + 6) = 36x - 7

What is no solution

400

Find the value:

(-2/3)^4


What is 

16/81

400

-6x - 7 = -13

What is x = 1

400
8(x - 5) = 8
What is x = 6
400

3(z + 5) =5z + 7

What is z = 4

400

2 + 3x - 5x = -6x + 4x + 2

What is infinite solutions.

500

Simplify using laws of exponents:

(5^3cdot7^5cdot10)/(5cdot7^4)

What is 

5^2cdot7^1cdot10   or 1,750


500

1/5x - 7 = -17 


What is x = -50

500

-5w + w - 12 + 4 + 2w = 10

What is w = -9

500

5x - 4 = 4x + 3

What is x = 7

500

5x + 8 = 2x - 1

What is one solution (x=-3)

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