Algebra

1). 3x + 7 = 9
2). -3(x + 5) + 3 = 12

Can you also please show the work so that I may have a better understanding.

asked by Angel
  1. 1). 3x + 7 = 9
    subtract 7 from both sides
    3 x = 2
    divide both sides by 3
    x = 2/3

    2). -3(x + 5) + 3 = 12
    subtract 3 from both sides
    -3(x+5) = 9
    divide both sides by -3
    x+5 = -3
    subtract 5 from both sides
    x = -8

    posted by Damon
  2. so easy

    posted by hohohoho
  3. i don't know what to do

    posted by mina

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