Multi-Step Equations

One-Step Equations

100

8m = 24

What is m?

8m = 24

m = 3

200

 11 + r = 30

What is r?

r + 11 = 30

r = 19

300

7h = 28

What is the value of h?

7h = 28

h = 4

400

a/8 =-3

What is the value of a?

a/8 = -3

a = -24

500

x - 4.2 = 5.7

What is the value of x?

x - 4.2 = 5.7

x = 9.9

Absolute Value

100

|-99|=-99, true or false?

False.

200

Can absolute value have no solution? True or false.

True

300

|x+4|=8

x=4,-12

400

|2x+2|=4

x=1,-3

500

|2x+6|= 12

x=3,-9

Multi-Step Equations

100

8b + 3b = 22

What is b?

8b + 3b = 22

11b = 22

b = 2

200

19x -5 - 24x = 10

What is the value of x?

19x - 24x -5 = 10

19x -24x = 15

-5x = 15

x = -3

300

2a + 5(a - 4) = 8

What is the value of a?

2a + 5(a - 4) = 8

2a + 5a -20 = 8

7a - 20 = 8

7a = 28

a = 4

400

!!!DOUBLE POINTS!!!

6(2y + 6) - 4y - 5= 25

What is the value of y?

6(2y + 6) - 4y - 5= 25

12y + 36 - 4y - 5 = 25

8y + 31 = 25

8y= -6

y= -3/4

500

-6(m + 1) + 18 = 24

What is the value of m?

-6(m + 1) + 18 = 24

-6m -6 + 18 = 24

-6m + 12 = 24

-6m = 12

m = -2

Distribution Multi-Step Equations

100

64 = 8(r + 2)

What is r?

64 = 8(r + 2)

64 = 8r + 16

48 = 8r

r = 6

200

7(f - 1) = 49

What is f?

7(f - 1) = 49

7f -7 = 49

7f = 56

f = 8

300

5(d - 2) = 40

What is d?

5(d - 2) = 40

5d -10 = 40

5d = 50

d = 10

400

72 = 5(4x + 10) +2

72 = 5(4x + 10) +2

72 = 5(4x + 10) +2

What is x = 1

500

9(y - 4) - 7y = 5(3y - 2)

What is y?

9(y - 4) - 7y = 5(3y - 2)

9y - 36 -7y = 15y - 10

2y -36 = 15y -10

2y - 26 =15y

-26 = 13y

y = -2

Randommmmmmmm

100

What is it called when we are performing an opposite operation?

Inverse

200

!!!!!DOUBLE POINTS!!!!!

What are Equivalent Equations?

Equivalent Equations have the same solution.

300

TRICK QUESTION!!!

If you get this wrong, the other team is awarded points. If you get this right, it is worth double points.

|x+7|=-12

No solution

400

How many days until Halloween?

34

500

What is the name of our observer?

Mrs. Stephens