Answer :
This requires setting up 2 equations with 2 variables. Let's say fg is the number of field goals made and ft is the number of free throws made.
Since we know a field goal is 2 points and a free throw is 1 point, we know that:
2fg + 1ft = 22
Since we know he scored 12 times, we know that:
fg + ft = 12
Now you can just subtract the second equation from the first. This would leave you with:
fg = 10
So, he scored 10 field goals. Using our equations, that must mean that he scored 2 free throws.
Since we know a field goal is 2 points and a free throw is 1 point, we know that:
2fg + 1ft = 22
Since we know he scored 12 times, we know that:
fg + ft = 12
Now you can just subtract the second equation from the first. This would leave you with:
fg = 10
So, he scored 10 field goals. Using our equations, that must mean that he scored 2 free throws.