What is the answer to |7x+1|-1=11 ?

The answer to |7x+1|-1=11 is x=-13/7 \lor x= 11/7

Solve for x: |7x+1|-1=11

The solution is x=-13/7 \lor x= 11/7

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∣ 7 x + 1 ∣ - 1 = 11

x = - \frac{13}{7} or x = \frac{11}{7}

Solution steps

∣ 7 x + 1 ∣ - 1 = 11

Move

1

to the right side

∣ 7 x + 1 ∣ = 12

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

7 x + 1 = - 12 or 7 x + 1 = 12

7 x + 1 = - 12 or 7 x + 1 = 12

x = - \frac{13}{7} or x = \frac{11}{7}

- 5 z^{2} - 3 z - 11 = - 6 z^{2}

x^{2} = 128

x + 7 = 17

9 x - 8 x = 107

8 (x + 2) - 3 (2 x + 1) = 2 (x + 5)

What is the answer to |7x+1|-1=11 ?
The answer to |7x+1|-1=11 is x=-13/7 \lor x= 11/7
Solve for x: |7x+1|-1=11
The solution is x=-13/7 \lor x= 11/7