how many stars is a face worth?. your turn write down the equation each time you alter the scales....

How many stars is a face worth?

Your turn

Write down the equation each time you alter the scales.

Remember to take the same things off each side!

How many stars is a face worth?

Solve these without the diagrams:

1) 2f + 1 = 7

2) 3f + 5 = f + 11

3) 2f + 1 = f + 9

4) 5f + 3 = 2f + 15

5) 4f + 5 = 2f + 10

6) 3f + 10 = 4f + 4

7) 2f + 1 = 3f + 1

8) 2f – 5 = f + 1

http://nlvm.usu.edu/en/nav/frames_asid_201_g_4_t_2.html

Lesson ObjectiveBe able to solve equations using the balancing method

=? =? =? =? =? =?

16

16

17

8

16 15 11 15

=2 =4 =3 =5 =1 =6

16

16

17

8

16 15 11 15

2x + 7 = 10

3x - 5 = 13

3x - 5 = 2x + 4

Lesson Objective

All to be able to solve equations with an unknown on one side of the equation (level 5/6)Some to be able to solve equations with the unknown on both sides of the equation (level 6/7)

I think of a number, lets call it n. I Multiply it by 4 and add 5 the answer is 18.

What is n?

4n + 5 = 18

Solve the equation.

I think of a number, lets call it n. I Multiply it by 3

and take 2, the answer is 17.

What is n?

3n - 2 = 17

Solve the equation.

2n + 5 = 21

Solve the equation.

I think of a number, lets call it n. I Multiply it by 2 and add 5, the answer is

21.

What is n?

2n + 5 = 21

Solve the equation.

3n - 4 = 28

Solve the equation.


and take 4, the answer is 28.

What is n?

3n - 4 = 28

Solve the equation.


and take 5. The answer is 4 more

than the number I started with.

What is n?

3n - 5 = n + 4

Solve the equation.

how many stars is a face worth?. your turn write down the equation each time you alter the scales....

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