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Anna007 [38]
3 years ago
15

Find x (steps pls) | x - 7| = 2 (i dunt understand the | in the questions)

Mathematics
1 answer:
kirill [66]3 years ago
3 0

these two bars |  | mean <u>absolute value</u>

here's how to find x

| x - 7| = 2

first apply the absolute rule

x - 7 = 2                 x - 7 = -2

in both equations add 7 on both sides

x - 7 + 7 = 2 + 7       x - 7 + 7 = -2 + 7

then simplify the expressions

x = 9                         x = 5

now combine these two solutions to get your answer

x = 9 or x = 5

hopefully my explanation helps

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