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Popular >

|1-7x|+5>= 8

Solution

∣ 1 - 7 x ∣ + 5 \geq 8

Solution

x \leq - \frac{2}{7} or x \geq \frac{4}{7}

+2

Solution steps

∣ 1 - 7 x ∣ + 5 \geq 8

Move

5

to the right side

∣ 1 - 7 x ∣ \geq 3

Apply absolute rule: If

∣ u ∣ \geq a, a > 0

then

u \leq - a

or

u \geq a

1 - 7 x \leq - 3 or 1 - 7 x \geq 3

1 - 7 x \leq - 3 or 1 - 7 x \geq 3

x \leq - \frac{2}{7} or x \geq \frac{4}{7}

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factor rp-9r+9p-81 factor

r p - 9 r + 9 p - 81

Frequently Asked Questions (FAQ)

What is |1-7x|+5>= 8 ?
The solution to |1-7x|+5>= 8 is x<=-2/7 \lor x>= 4/7