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19 June, 08:37

3x + 7 = 5x - 1

6x + 3 = 21

3x - 2x + 7x

+1
Answers (1)
  1. 19 June, 11:50
    0
    Put all xs on one side; all numbers on one side. add the opposite of 3x to both sides. then 7=2x-1 now add 1 to both sides of the equation: then 8=2x; to solve

    for x divide both sides by the coefficient of x which is 2. Hence, x=4.

    Good luck!
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