What is the answer to |7x-1|=8 ?

The answer to |7x-1|=8 is x=-1\lor x= 9/7

Solve for x: |7x-1|=8

The solution is x=-1\lor x= 9/7

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∣ 7 x - 1 ∣ = 8

x = - 1 or x = \frac{9}{7}

Decimal Notation

x = - 1, x = 1.28571 \dots

Solution steps

∣ 7 x - 1 ∣ = 8

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

7 x - 1 = - 8 or 7 x - 1 = 8

7 x - 1 = - 8 or 7 x - 1 = 8

x = - 1 or x = \frac{9}{7}

∣ z + 8 ∣ = ∣ z - 3 ∣

- 5 \cdot - 20

0^{0}

48 \cdot 2

7 x^{2} + 2 x - 5 = 0