You and a friend collect acorns from a field. After g minutes u have collected(10 + 2g) acorns and y

[math_celebrity]

You and a friend collect acorns from a field. After g minutes u have collected(10 + 2g) acorns and your friend has collected (5g - 2) acorns. How many total acorns have you and your friend collected

Add both acorn collections together:
(10 + 2g) + (5g - 2)

Group like terms:
(5 + 2)g + 10 - 2
7g + 8