so i got attacked today in earth solo and it was by someone who had 100 tanks 60 rang 30 armor and 10 damage so what should i do to beat him i lost the battle and now he has my 8 crystals and i need help should i us a nuke and tanks or what

Vehicles have a 25% bonus vs tanks, so I would advise building a vehicle army with mostly explosive weapons. I would also advise you not to build any damage units at all as they are not cost-effective. Instead, build 4-5 armour units for every 10-11 range units.

Nukes and spies would both be useful in bringing him down - I'd also suggest sending a single unit to his colony before you attack him to trigger his shield. Then launch your attack to land 11 ticks after his shield was triggered, meaning he has very little time to prepare.

actualy idk if i would go with the spy thing chances are he has a spy in his colony protecting him

Explosive vehicles in the ratio 6:9 (armor to range).
spies and nukes will help but make sure to scan first