Question

Two trains, Train A and Train B, weigh a total of 489 tons. Train A is heavier than Train B. The difference of their weights is 443 tons. What is the weight of each train?

Answer 1

A = 466 tons

B = 23 tons

Explanation:

A + B = 489 tons

A - B = 443 tons

solve for one in terms of the other, then combine the equations and solve for the unknown.

A = 443 + B

(443 + B) +B = 489

443 + 2B = 489

2B = 46

B = 23 tons

A = 443 +(23)

A = 466 tons

HOPE THIS MAKES SENSE AND HELPS!!!