Intermediate Algebra
Which statement best matches the definition of the absolute value of a real number xx?
Solve ∣x−3∣=5|x - 3| = 5.
Solve 2+∣3x−6∣=82 + |3x - 6| = 8.
Solve ∣x+1∣=∣2x−3∣|x + 1| = |2x - 3|.
A thermostat registers temperature error as E = |T - 20| where T is the temperature in °C. If the error is 5°C, what possible temperatures T satisfy this?