Algebra

Hey people, i need some help i tried to do this but i don't know what im doing help me out here please...
1.x/4 +1 = -5
a. -2****
b. 16
c. 4
d. -24

2. 6x + 29 = 5
a. -4**
b. -18
c. 204
d. -144

3. combine like terms.
-21a +16a
1. -5a****
2. 5a
3. 37a
4. -37a

4. simplifiy the expression.
9a - b - 2a -10b
a. -7a + 11b
b. 11a + 9b***
c.-11a - 9b
d. 7a - 11b

5. 5(x+10) + x
1. 6x + 16
2. 5x + 15***
3. 6x + 50
4. 4x - 50

6. -4n + 7 + 2n = 1
a. 1
b. 3****
c.-3
d. 4

7. 4(y - 4) = 8
a. -2
b. 2***
c. 4
d.6
super Urgent please help me!!! and please explain to me how you got the answer because i need to know

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  1. 1,4,5,7 are wrong.

  2. 4(y - 4) = 8
    y-4 = 2
    y = 6

    or

    4y-16 = 8
    4y = 24
    y = 6

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  3. thanks but what about the others?

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  4. what, you're not gonna take another look at them?
    You got some right, so try again on the other two.
    When you get your answer, try replacing the variable with a value (say, 1 or 2) and see whether the two expressions evaluate to the same number.

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