Please help me solve this, I can't get a right answer even though it is easy: | 2x + 4 | = 12

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02-06-2017
Mathematics

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Please help me solve this, I can't get a right answer even though it is easy: | 2x + 4 | = 12

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zqqqqqqqqqqqqq zqqqqqqqqqqqqq · Answer 1 · 2017-06-02T03:22:36+02:00

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02-06-2017

Because the left side is eclipsed in an absolute value, we have two possible values of x, denoted by:
2x+4 = 12 and -(2x+4) = 12

Solving for both of these, we are presented with the two values of x:
x = 4 and x = -8

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