Let's integrate: <math><mo>∫(</mo><mn>1</mn><mo>)dx</mo></math>
 <math><mi>x</mi></math>
Indefinite integrals are defined up to an additive constant <m>C</m>, so this yields: <math><mi>x</mi><mo> + </mo><mi>C</mi></math>

▷<b>Answer: &nbsp; <math><mi>x</mi><mo> + </mo><mi>C</mi></math></b><span style='font-size:smaller'>, where <m>C</m> is a constant &nbsp; &nbsp; (computation required 3 steps and 2 ms)</span>