learn.howToCalculate
learn.whatIsHeading
Absolute value equations describe the distance of a number from zero on a number line. Solving |x - a| = b requires considering both positive and negative cases, as distance is always non-negative.
Formel
|x - a| = b → x - a = b or x - a = -b
Trinn-for-trinn guide
- 1Set up two equations: positive and negative cases
- 2Solve each equation separately
- 3Verify both solutions in the original equation
Løste eksempler
Inndata
|x - 3| = 5
Resultat
x = 8 or x = -2
Both values are 5 units away from 3
Vanlige feil å unngå
- ✕Forgetting the negative case
- ✕Not checking solutions in the original equation
Klar til å beregne? Prøv den gratis Absolute Value Equation Solver-kalkulatoren
Prøv selv →