Algebra Flashcards by Phoebe Sharp | Brainscape

Q

a+a+a+a

A

4a

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Q

2y+y+7y

A

10y

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Q

12c-5c+4c

A

11c

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Q

5t-4t+3t-6t

A

-2t

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Q

p=4 and t=7. 2p+t

A

15

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Q

p+2s+4p+2s

A

5p+4s

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Q

3a+7b+2a+2b

A

5a+9b

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Q

8s+t-3s+2t

A

5s+3t

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Q

5x-y-2x-6y

A

3x-5y

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Q

x=8 and y=-1. Show that 2x+3y=13

A

2x8=16 3x-1=-3 16-3=13

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Q

x=8 and y=-1. Write down an expression involving x and y that has a value of 18

A

3x+6y=18

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Q

2(a+3)

A

2a+6

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Q

3(2c+3)

A

6c+9

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Q

r(5r+4)

A

5r2+4r

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Q

2a+10

A

2(a+5)

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Q

3xy+10y

A

y(3x+10)

Q

15e+20e2

A

5e(3+4e)

Q

Work out the value of p(q - 3) / 4

When p = 2

q = -7

A

= p(q - 3) / 4

= 2(-7 - 3) / 4

= 2(-10) / 4

= -20 / 4

= -5