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10 February, 04:35

Solve for al

(21 - 3a) = 6 - a

+5
Answers (2)
  1. 10 February, 07:01
    0
    7.5

    Step-by-step explanation:

    Isolate the variable by dividing each side by factors that don't contain the variable.
  2. 10 February, 07:46
    0
    The answer is 7.5

    To get this answer you have to add like terms first. I added 3a so i ended up 21=6+2a

    Subtract 6

    15=2a now divide by 2

    Answer is 7.5
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