Question

A pile of pebbles has a weight of 85 kg.

Some of the pebbles were put into a small sack.
The rest of the pebbles is put into a large sack.
The pebbles in the large sack weigh 35 kg more than the pebbles in the small sack.
What is the weight of the pebbles in the large sack?

Answer 1

Variables:

x is the small sack’s weight.

Equation:

x = small sack’s weight - 25

x + 35 = bigs sack‘s weight - 60

2x + 35 = 85

x = 25