This one has hints of PLUGiIN and BACKSOLVE, even though it's a grid-in! We don't need any of that stuff about how many candies are in the jar...that's just extraneous information. All we need to know is where Ari's starting from (3 red, 4 green) and how many more he takes. We want him to have more red pieces than green pieces by the end, but just

*barely*. Here's how I set it up:

**RED** | **GREEN** | **Comments** |

3 | 4 | This is our starting point. |

+7 | +6 | Just plugging in 2 numbers that are close together and add up to 13. |

=10 | =10 | OOPS! That's not enough red...Ari has the same amount of each color now. |

Now it's kinda clear where to go: add one more red (and one less green):

**RED** | **GREEN** | **Comments** |

3 | 4 | This is our starting point (again). |

+8 | +5 | Plug in new numbers. |

=11 | =9 | That'll do it! Any less red and he'd have the same number of each (as we saw above). |