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05-01-2022
Mathematics

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PLEASE ANSWER PLEASE PLEASE PLEASE
I4x + 3I = 15

Please set up two equations and list your answers from least to greatest.

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LammettHash LammettHash

05-01-2022

Use the definition of absolute value.

• If 4x + 3 ≥ 0, then

|4x + 3| = 15

4x + 3 = 15

4x = 12

x = 3

• Otherwise, if 4x + 3 < 0, then

|4x + 3| = 15

-(4x + 3) = 15

4x + 3 = -15

4x = -18

x = -9/2

Then the solutions are {-9/2, 3}.

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