Question

Suzanne bought 50 apples at the apple orchard. She bought 4 times as many red apples as green apples. How many more red apples than green apples did Suzanne buy.

Answer 1

$x-green\ apples\\4x-red\ apples\\\\x+4x=50\\5x=50\ \ \ \ |:5\\x=10\\\\4x=40\\\\40-10=30\\\\Suzanne\ buy\ 30\ more\ red\ apples\ than\ green.$