One number is 5 more than another number. their sum is - 15. what are the numbers?

Question

Mathematics

Karla Rowland

29 June, 14:33

One number is 5 more than another number. their sum is - 15. what are the numbers?

+1

Answers (1)

Know the Answer?

Augustus Hull · Answer 1

X=5+y

x+y=-15

subsitute 5+y for x

5+y+y=-15

5+2y=-15

minus 5 from both sides

2y=-20

divide both sides by 2

y=-10

sub back

x=5+y

x=5-10

x=-5

the numbers are - 10 and - 5