What is the answer to 3|9+x|-16=20 ?

The answer to 3|9+x|-16=20 is x=-21\lor x=3

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3|9+x|-16=20

3 ∣ 9 + x ∣ - 16 = 20

x = - 21 or x = 3

Solution steps

3 ∣ 9 + x ∣ - 16 = 20

Move

16

to the right side

3 ∣ 9 + x ∣ = 36

Divide both sides by

3

∣ 9 + x ∣ = 12

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

9 + x = - 12 or 9 + x = 12

9 + x = - 12 or 9 + x = 12

x = - 21 or x = 3

∣ m + 8 ∣ = 12

∣ 7 x - 5 ∣ = 9

∣ x - 5 ∣ = 4 x + 4

∣ 5 x ∣ = 30

5 x + 4 - x = 14 + ∣ x + 1 ∣

What is the answer to 3|9+x|-16=20 ?
The answer to 3|9+x|-16=20 is x=-21\lor x=3
Solve for x: 3|9+x|-16=20
The solution is x=-21\lor x=3