Algebra

posted by Angel

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.

  1. Damon

    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

  2. hohohoho

    so easy

  3. mina

    i don't know what to do

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