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Biblioteka

9/23 algebraic proofs

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Posljednje ažuriranje about 2 years ago
8
12.5
Pitanje 1
1.

match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

3x = 12

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given

x = 4

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subtraction

3x + 4 = 16

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division

12.5
12.5
12.5
12.5
Pitanje 5
5.

match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

2x=5x-15

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given

x = 5

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subtraction

2x+3=5x-12

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subtraction

-3x = -15

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division

12.5
12.5
12.5
Pitanje 2
2.

Match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

x=7

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given

4x-3=7x-24

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subtraction

-3=3x-24

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addition

21=3x

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division

7=x

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symmetric

Pitanje 3
3.

match the proof reasons to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

x = 3

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given

8x = 24

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distributive

+4(2x+1) = 28

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subtraction

8x + 4 = 28

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division

Pitanje 4
4.

match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

3x = 30

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given

x = 10

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addition

3x-2=28

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division

Pitanje 6
6.

match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

20x+8=15x+48

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given

5x=40

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distributive

x=8

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subtraction

20x=15x40

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subtraction

4(5x+2)=15x+48

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division

Pitanje 7
7.

Match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

5=2y-3

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given

y=4

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subtraction

4=y

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addition

10y+5=12y-3

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division

8=2y

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symmetric

Pitanje 8
8.

match the proof reason to the correct step.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

-6x+10=-32

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given

x=7

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distribution

6x+10=12x-32

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subtraction

6x+10=4(3x-8)

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subtraction

-6x=-42

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division