Question

6x+7y=28
2x+2y=10
The solutions to the given equations above are (x,y). What is the value of y?

Answer 1

To find the value of y, we can use the method of elimination. Multiply the second equation by -3 to eliminate x when we add the equations together:

-3(2x + 2y) = -3(10)
-6x - 6y = -30

Add the equations together:

(6x + 7y) + (-6x - 6y) = 28 + (-30)
y = -2

The value of y is -2.