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Popular >

|3-7x|>= 4

Solution

∣ 3 - 7 x ∣ \geq 4

Solution

x \leq - \frac{1}{7} or x \geq 1

+2

Solution steps

∣ 3 - 7 x ∣ \geq 4

Apply absolute rule: If

∣ u ∣ \geq a, a > 0

then

u \leq - a

or

u \geq a

3 - 7 x \leq - 4 or 3 - 7 x \geq 4

3 - 7 x \leq - 4 or 3 - 7 x \geq 4

x \leq - \frac{1}{7} or x \geq 1

Popular Examples

\frac{x}{2} + 5 \leq 3

∣ 7 x + 12 ∣ = 12

simplify (5.05^2-5(5.05))/(5.05^2-25)simplify

\frac{5.0 5 ^{2} - 5 ( 5.05 )}{5.0 5 ^{2} - 25}

factor 81x^2-100 factor

81 x^{2} - 100

x^{3/2}-x^{1/2}

x^{\frac{3}{2}} - x^{\frac{1}{2}}

Frequently Asked Questions (FAQ)

What is |3-7x|>= 4 ?
The solution to |3-7x|>= 4 is x<=-1/7 \lor x>= 1