Question 678862
Isolate the y variable
...
4x + y = -10
{{{highlight_green(y = -4x - 10)}}}

.....................
Delighted to help; feel free to email if you have further questions.
HomeworkHelpers@readingboosters.com
-Reading Boosters
Website: www.MyHomeworkAnswers.com 
Wanting for others what we want for ourselves.