Question

A wooden board 100 centimeters long is cut into two pieces. One piece is 16 centimeters longer than the other. What are the lengths of the two pieces

Answer 1

100=x+y
x is 16 more than y
x=16+y
sub 16+y for x
100=16+y+y
100=16+2y
minu s16
84=2y
divide both sides by 2
42=y

sub back
x=16+y
x=16+42
x=58

the legnths are 42 cm and 58 cm