Let x = the number of green apples, let 4x = the number of red apples 4x + x = 50 Set up the quation 5x = 50 Combine like terms ---- ---- Divide by 5 on both sides to get x alone 5 5 x = 10 green apples 4x = 4(10) = 40 red apples
40 - 10 = 30. Suzanne bought 30 more red apples than green apples.