What is the answer to |x|-7=8 ?

The answer to |x|-7=8 is x=-15\lor x=15

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|x|-7=8

∣ x ∣ - 7 = 8

x = - 15 or x = 15

Solution steps

∣ x ∣ - 7 = 8

Move

7

to the right side

∣ x ∣ = 15

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

x = - 15 or x = 15

2.5 (\frac{π}{6})

4 (d + 3) - 3 (d - 2) = 1.2

5 + 8 p = 77

\frac{1}{8} + \frac{2}{8} + \frac{1}{20}

3 c^{3} - 9 c^{2}