Question

Can you Solve |2a-1|=7

Answer 1

Answer: a=4 or a= −3, so you can use anyone of the answers.

Step-by-step explanation:

Solve Absolute Value.

|2a−1|=7

We know either 2a−1= 7or 2a−1 = −7

2a−1=7(Possibility 1)

2a−1+1=7+1(Add 1 to both sides)

2a=8

$\frac{2a}{2} = \frac{8}{2}$ (Divide both sides by 2)

a=4

OR,

2a−1=−7 (Possibility 2)

2a−1+1= −7+1 (Add 1 to both sides)

2a= −6

$\frac{2a}{2} =\frac{-6}{2}$ (Divide both sides by 2)

a= −3

Therefor the answers are a=4 or a= −3

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