Math

Combine like terms to simplify the expression.
1/_4+6+9y=
Answer: 5y+6

2/ 20a+7+3=
Answer: 20+10

3/_5k+9_2+9k=
Answer: 4k+7

4/ 17+2.9h+3=
Answer: 30+14

Simplify the expression.
5/ _4(3+d)+7d_d=
Answer: _16+6d

6/ 8+5(j_5)+3j_1=
Answer: 32+8j_1

7/ 9(b_3)+4(b_5)=
Answer: 5b+22

8/ _2(2g_6)+4(g_3)=
Answer:zero+9

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  3. 4
asked by Nnnnn
  1. 3 is right. The others are wrong.

    Please note that a minus sign is - not _

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    2. 0
    posted by Ms. Sue
  2. Try using the minus (-) sign for subtraction, not the underscore (_)!

    Anyway, you got them almost all wrong:

    -4+6+9y = 2+9y (since 6-4=2)
    20a+7+3 = 20a+10
    -5k+9-2+9k = 4k+7 OK
    17+2.9h+3 = 20+2.9h
    -4(3+d)+7d-d = -12-4d+7d-d = -12+2d
    8+5(j-5)+3j-1 = 8+5j-25+3j-1 = 8j-18
    9(b-3)+4(b-5) = 9b-27+4b-20 = 13b-47
    -2(2g-6)+4(g-3) = -4g+12+4g-12 = 0

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    2. 0
    posted by Steve

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