Answer:
The left side is 27 and the right side is 31
Step-by-step explanation:
On the left multiply 3x7 because there are 3 squares which weigh 7 lbs and add 6 lbs because there is one triangle to get 27. Then, on the left side, multiply 6x4 because there are 4 triangles that weigh 6 lbs each and add 7 since there's one square to get 31.