Asaltyskid
Answered

(15)Simplify the expression below. Show your work -(-7y+12)


Please help!! I need to get this done before a dead line today


(16) solve the equation show your work

1 6

_ = _

a 18


(17) solve the equation show your work 8x -12 = 4x + 24



(18) solve the inequality show your work -6b > 42 or 4b > -4



(19) write an algebraic expression for the phrase: 6 more than the product of 8 and n.



last question (20) solve the equation show your work 45 = 3b + 69


help!!!

Verified Answer :

texaschic101
  1. -(-7y + 12) = 7y - 12

    16. 1/a = 16/18
          cross multiply
          16a = 18
          a = 18/16 = 9/8

    17. 8x - 12 = 4x + 24
          8x - 4x = 24 + 12
          4x = 36
          x = 36/4
          x = 9

    18. -6b > 42           4b > -4
           b < 42/-6          b > -4/4
           b < - 7              b > -1
    so b < -7 and b > -1

    19. 6 more then the product of 8 and n
          6 + 8n

    20. 45 = 3b + 69
          45 - 69 = 3b
          -24 = 3b
          -24/3 = b
          -8 = b
yadvi3

(15) -(-7y + 12) = +7y - 12
(17) 8x - 12 = 4x + 24---> 8x - 4x = 24 + 12 ---> 4x = 36 ---> x = 9 (18) -6b > 42 ---> b<42/-6 ---> b<8 & 4b > 44 --> b> 11. So, 8>b>11 (20) 45 = 3b + 69 --> 3b = -24 ---> b = -8. Not sure what to do for (16) & (19)

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