0.5=|x-98.6|

解

0.5 = ∣ x - 98.6 ∣

x = 98.1 or x = 99.1

解答ステップ

0.5 = ∣ x - 98.6 ∣

辺を交換する

∣ x - 98.6 ∣ = 0.5

絶対規則を適用する:

∣ u ∣ = a, a > 0

の場合は

u = a

u = - a

x - 98.6 = - 0.5 or x - 98.6 = 0.5

x - 98.6 = - 0.5 or x - 98.6 = 0.5

x = 98.1 or x = 99.1