Question

How do you complete the ordered pair (5, y) given –5x + y = –4?

Answer 1

`(5,y)=color(green)(5,21)`

Explanation:

`(5,y)` implies `x=5`

Substituting `color(red)(5)` for `x` in `-5x+y=4` gives

`color(white)("XXX")-5color(red)(xx5)+y=4`

`color(white)("XXX")-25+y=-4`

`color(white0("XXX")y=21`