plants also don't do a perfect job sequestering the CO2 , they eventually release much of it as they rot. but yes, plant more trees, cut down fewer trees. Unfortunately that's not one we have a lot of direct control over, but we can impact the demand for cutting down forests - opt out of printed media. shop locally and avoid shipping, reuse boxes.
or in general waste less. buy used things. buy reusable not disposable. ride a bike. don't have kids.