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5 November, 11:34

4.7+x=3.1

Solve for

x

.

x=

+4
Answers (2)
  1. 5 November, 11:40
    0
    X = - 1.5

    4.7 + X = 3.1

    move the x and it becomes

    4.7 = 3.1 - X

    then divide 4.7 by 3.1. then you get 1.5 but you cannot have a negative variable so you make the 1.5 negative!
  2. 5 November, 11:47
    0
    4.7 + x = 3.1

    Subtract 4.7 from both sides to isolate x

    x = 3.1 - 4.7 = - 1.6
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