What is the answer to |3-x|=4 ?

The answer to |3-x|=4 is x=-1\lor x=7

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|3-x|=4

∣ 3 - x ∣ = 4

x = - 1 or x = 7

Solution steps

∣ 3 - x ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

3 - x = - 4 or 3 - x = 4

3 - x = - 4 or 3 - x = 4

x = - 1 or x = 7

6 y^{2} + 36 = 30 y

\frac{104 i}{5 + i}

- 5 + \frac{1}{4}

- 3 z - 3 < - 24

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