brian6519 brian6519

06-10-2020
Mathematics

contestada

Identify the mistake that was made.
2(3x - 9) = 2x + 30
6x + 18 = 2x + 30
-2x -2x
4x + 18 = 30
-18 -18
4x = 12
4 4
x = 3

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laurelhayou laurelhayou

06-10-2020

the error was they forgot to make 18 a negative

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