Can I have some algebra help for 10 points?

Question

Solve each equation. Check for extraneous soulutions. When submitting an answer for an equation with a variable, be sure to use the variable form. For example, the answer to 2n = 4 should be written as n = 2.

1. 3|2y - 5| = 27

2. |x + 5| = 2x + 3

3. The diameter d of a fiber optic cable must be at least 4.8 mm and at most 5.2 mm. Write an absolute value inequality and a compound inequality for the diameter of the cable.

|d - 5| < 0.2 ; 4.8 < d < 5.2

|d - 5| > 0.2 ; 4.8 > d > 5.2

Answer 1

1. 3(2y-5)=27

    6y-15=27

    6y=27+15

    6y=42

    y=42/6

    y=7

2. x + 5 = 2x + 3

    5=2x-x+3

    5-3=x

    x=2

Answer 2

1. y= -2, -2x2=-4, -4-5= -9, absolute value of

-9=9, 3*9=27!!

2. um, im not sure, tricky

3. not sure, not good at these

sorry!

Answer 3

1. y= 7

the others..eh...