How do I solve this: 2x + 5y = 20 find y?
It just says find the x and y intercept of the graph of each equation.
- Anonymous8 years agoFavorite Answer
y = mx + b
5y = -2x + 20
y = -2/5x + 4
So, y is 4
x is 12.5
- dendron53Lv 58 years ago
2x + 5y = 20
5y = 20 - 2x
y = (20-2x)/5 = 4-(2/5)x
- 8 years ago
It's impossible to solve unless you know x or if there is another equation where x and y would be the same values.
Depending on what x is, y could be any number of solutions.