What is the answer to 4|5x-2|+1=21 ?

The answer to 4|5x-2|+1=21 is x=-3/5 \lor x= 7/5

Solve for x: 4|5x-2|+1=21

The solution is x=-3/5 \lor x= 7/5

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4 ∣ 5 x - 2 ∣ + 1 = 21

x = - \frac{3}{5} or x = \frac{7}{5}

Decimal Notation

x = - 0.6, x = 1.4

Solution steps

4 ∣ 5 x - 2 ∣ + 1 = 21

Move

1

to the right side

4 ∣ 5 x - 2 ∣ = 20

Divide both sides by

4

∣ 5 x - 2 ∣ = 5

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 x - 2 = - 5 or 5 x - 2 = 5

5 x - 2 = - 5 or 5 x - 2 = 5

x = - \frac{3}{5} or x = \frac{7}{5}

∣ 3 x + 2 ∣ = 9

∣ 8 x ∣ - 5 = 75

(2 + ∣ x - 2 ∣) = 1

- x + ∣ 2 x - 7 ∣ = 4

x^{3} - 3 x - 2 = 0.2

What is the answer to 4|5x-2|+1=21 ?
The answer to 4|5x-2|+1=21 is x=-3/5 \lor x= 7/5
Solve for x: 4|5x-2|+1=21
The solution is x=-3/5 \lor x= 7/5