Question

5x+4y=ー7 -5x-2y =1 elimination

Answer 1

To eliminate x, add the two equations together:

5x + 4y = -7

(-5x - 2y = 1)

2y = -6

Solve for y:

2y = -6

y = -3

Substitute y = -3 into one of the original equations, say -5x - 2y = 1, and solve for x:

-5x - 2y = 1

-5x - 2(-3) = 1

-5x + 6 = 1

-5x = -5

x = 1

Therefore, the solution is (x, y) = (1, -3).

Explanation: