Victoria is playing with her balance scale and balances 3 blue blocks and 2 red blocks on one side with 5 blue blocks and a red block on the other. Later, her brother balances 2 red blocks and a blue block with a 40-gram weight. How much does each block weigh? Homework Help ✎
Create a system of equations to solve the problem.
Where r is the weight of a red block, and b is the weight of a blue block:
3b + 2r = 5b + r
2r + b = 40