Question

Consider the following equation.x + 5y = 12Step 1 of 2: Determine the missing coordinate in the ordered pair (4, ?) so that it will satisfy the given equation.

Answer 1

`x+5y=12`

The problem is giving us a coordinate (x,y): (4,?).

Then, to know which value satisfies the latter in the given equation, we have to replace x by 4 as follows:

`4+5y=12`

Finally, isolating for y we get the result.

`5y=12-4`
`y=(8)/(5)=1.6`

Answer: ( 4, 8/5 )