Question

14x+5y=31 and 2x-3y=-29​

Answer 1

yes is proportional

Explanation:

Answer 2

I will assume you are trying to find x and y. x = -1, y = 0=9

Explanation:

Multiply the second equation by 7 and subtract the two.

14x + 5y = 31

-(14x - 21y = -203)

This gives 26y = 234. Divide both sides by 26. y = 9

Then substitute y into any equation. I'll use 2x - 3y = -29

2x -3(9) = -29

2x - 27 = -29

2x = -2

x = -1