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Question 1
Evaluate

2y+8fory=−2


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Question 2
Evaluate

−5x+6forx=−8


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Question 3
Evaluate

3r−2s+12forr=10ands=4


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Question 4
Evaluate

6y−4x−9forx=6andy=−3


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Question 5
Translate the expression

a number t decreased by 13


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Question 6
Translate the expression

six times a number y

Group of answer choices

6y

6-y

6+y

6/y

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Question 7
Translate the expression

three more than four times a number p

Group of answer choices

4p+3

3(4+p)

3p+4

(3+4)p

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Question 8
Translate the expression

two times a number v decreased by 7

Group of answer choices

2(v-7)

2v-7

2(7-v)

(2v)-7

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Question 9
Translate the expression

six times the sum of seven and a number x

Group of answer choices

6x+7

6(7+x)

7+6+x

6(7)+x



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Question 11
Simplify the expression

-8b-10b+7

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Question 12
Simplify the expression

13 + 7t -9


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Question 13
Simplify the expression (remember to write the variables in alphabetical order)

-9n-8m+8-3n+6m-2


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Question 141 pts
Simplify the expression

-5x+3y+9x+7


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Question 15
Bonus Question (3 pts extra credit)

Simplify and evaluate the expression for x=2 and y=-4

-2y+4x-3y+6x-12

Respuesta :

Answer:

Step-by-step explanation:

A lot to answer here, so lets get straight into it.

Question 1 :

2y + 8 for y = -2

We just need to substitute :

2(-2) + 8

-4 + 8

4

Question 2 :

-5x + 6 for x = -8

Substitute :

-5(-8) + 6

40 + 6

46

Question 3 :

3r - 2s + 12 for r = 10 and s = 4

Substitute :

3(10) - 2(4) + 12

30 - 8 + 12

22 + 12

34

Question 4 :

6y - 4x - 9 for x = 6 and y = -3

Substitute :

6(-3) - 4(6) - 9

-18 - 24 - 9

-42 - 9

-51

Question 5 :

A number t decreased by 13

t - 13

Question 6 :

Six times a number y

6y

Question 7 :

Three more than four times a number p

4p + 3

Question 8 :

Two times a number v decreased by 7

2v - 7

Question 9 :

Six times the sum of seven and a number x

6(7 + x)

Question 11 :

-8b - 10b + 7

-18b + 7

Question 12 :

13 + 7t - 9

13 - 9 + 7t

4 + 7t

Question 13 :

-9n - 8m + 8 - 3n + 6m - 2

-9n - 3n = -12n

-8m + 6m = -2m

8 - 2 = 6

-2m - 12n + 6

Question 141? :

-5x + 3y + 9x + 7

-5x + 9x = 4x

3y = 3y

7 = 7

4x + 3y = 7

Question 15 / Bonus :

-2y + 4x - 3y + 6x - 12 for x = 2 and y = -4

Substitute :

-2(-4) + 4(2) - 3(-4) + 6(2) - 12

8 + 8 + 12 + 12 - 12

16 + 12 + 12 - 12

28 + 12 - 12

40 - 12

28

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