Question

Problem
What is the result of adding these two equations?
-2x+7y=-5
-2x-4y=6

Answer 1

To find the result of adding the two equations -2x + 7y = -5 and -2x - 4y = 6, we can use the method of elimination or substitution.

Let's use the method of elimination. We want to eliminate one of the variables, either x or y, by adding the two equations together.

When we add the two equations, the x terms will cancel each other out:

(-2x + 7y) + (-2x - 4y) = -5 + 6

-2x - 2x + 7y - 4y = 1

-4x + 3y = 1

So, the result of adding the two equations is -4x + 3y = 1.

Explanation: