MATH!!!!!!!!!!!!!!!!!!!!!

10(line)2-4a(line)=20
Absolute value
How do I solve this equation?

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  1. Are you saying
    |2-4a| = 20 ????

    if so, then
    2-4a = 20 or 2-4a = -20
    -4a = 18 or -4a = -22
    a = -9/2 or a = 11/2

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  2. sure

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